[xen staging] x86/hvm: remove redundant save functions

classic Classic list List threaded Threaded
1 message Options
Reply | Threaded
Open this post in threaded view
|

[xen staging] x86/hvm: remove redundant save functions

patchbot
commit d0d8980138c45bddbb846e80e80edca2ad33ff75
Author:     Alexandru Isaila <[hidden email]>
AuthorDate: Mon Sep 10 16:27:00 2018 +0200
Commit:     Jan Beulich <[hidden email]>
CommitDate: Wed Sep 12 16:42:40 2018 +0200

    x86/hvm: remove redundant save functions
   
    This patch removes the redundant save functions and renames the
    save_one* to save. It then changes the domain param to vcpu in the
    save funcs and adapts print messages in order to match the format of the
    other save related messages.
   
    Signed-off-by: Alexandru Isaila <[hidden email]>
    Reviewed-by: Jan Beulich <[hidden email]>
---
 xen/arch/x86/cpu/mcheck/vmce.c | 18 +---------
 xen/arch/x86/emul-i8254.c      |  5 +--
 xen/arch/x86/hvm/hpet.c        |  7 ++--
 xen/arch/x86/hvm/hvm.c         | 75 ++++--------------------------------------
 xen/arch/x86/hvm/irq.c         | 15 +++++----
 xen/arch/x86/hvm/mtrr.c        | 22 ++-----------
 xen/arch/x86/hvm/pmtimer.c     |  5 +--
 xen/arch/x86/hvm/rtc.c         |  5 +--
 xen/arch/x86/hvm/save.c        | 30 +++++++++--------
 xen/arch/x86/hvm/vioapic.c     |  5 +--
 xen/arch/x86/hvm/viridian.c    | 23 +++----------
 xen/arch/x86/hvm/vlapic.c      | 38 +++------------------
 xen/arch/x86/hvm/vpic.c        |  5 +--
 xen/include/asm-x86/hvm/save.h |  8 ++---
 14 files changed, 65 insertions(+), 196 deletions(-)

diff --git a/xen/arch/x86/cpu/mcheck/vmce.c b/xen/arch/x86/cpu/mcheck/vmce.c
index 71afc06f9a..f15835e9f6 100644
--- a/xen/arch/x86/cpu/mcheck/vmce.c
+++ b/xen/arch/x86/cpu/mcheck/vmce.c
@@ -350,7 +350,7 @@ int vmce_wrmsr(uint32_t msr, uint64_t val)
 }
 
 #if CONFIG_HVM
-static int vmce_save_vcpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h)
+static int vmce_save_vcpu_ctxt(struct vcpu *v, hvm_domain_context_t *h)
 {
     struct hvm_vmce_vcpu ctxt = {
         .caps = v->arch.vmce.mcg_cap,
@@ -362,21 +362,6 @@ static int vmce_save_vcpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h)
     return hvm_save_entry(VMCE_VCPU, v->vcpu_id, h, &ctxt);
 }
 
-static int vmce_save_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = vmce_save_vcpu_ctxt_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
 static int vmce_load_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h)
 {
     unsigned int vcpuid = hvm_load_instance(h);
@@ -397,7 +382,6 @@ static int vmce_load_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h)
 }
 
 HVM_REGISTER_SAVE_RESTORE(VMCE_VCPU, vmce_save_vcpu_ctxt,
-                          vmce_save_vcpu_ctxt_one,
                           vmce_load_vcpu_ctxt, 1, HVMSR_PER_VCPU);
 #endif
 
diff --git a/xen/arch/x86/emul-i8254.c b/xen/arch/x86/emul-i8254.c
index a85dfcccbc..73be4188ad 100644
--- a/xen/arch/x86/emul-i8254.c
+++ b/xen/arch/x86/emul-i8254.c
@@ -391,8 +391,9 @@ void pit_stop_channel0_irq(PITState *pit)
     spin_unlock(&pit->lock);
 }
 
-static int pit_save(struct domain *d, hvm_domain_context_t *h)
+static int pit_save(struct vcpu *v, hvm_domain_context_t *h)
 {
+    struct domain *d = v->domain;
     PITState *pit = domain_vpit(d);
     int rc;
 
@@ -438,7 +439,7 @@ static int pit_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PIT, pit_save, NULL, pit_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(PIT, pit_save, pit_load, 1, HVMSR_PER_DOM);
 #endif
 
 void pit_reset(struct domain *d)
diff --git a/xen/arch/x86/hvm/hpet.c b/xen/arch/x86/hvm/hpet.c
index 4d8f6da2d9..be371ecc0b 100644
--- a/xen/arch/x86/hvm/hpet.c
+++ b/xen/arch/x86/hvm/hpet.c
@@ -570,16 +570,17 @@ static const struct hvm_mmio_ops hpet_mmio_ops = {
 };
 
 
-static int hpet_save(struct domain *d, hvm_domain_context_t *h)
+static int hpet_save(struct vcpu *v, hvm_domain_context_t *h)
 {
+    const struct domain *d = v->domain;
     HPETState *hp = domain_vhpet(d);
-    struct vcpu *v = pt_global_vcpu_target(d);
     int rc;
     uint64_t guest_time;
 
     if ( !has_vhpet(d) )
         return 0;
 
+    v = pt_global_vcpu_target(d);
     write_lock(&hp->lock);
     guest_time = (v->arch.hvm.guest_time ?: hvm_get_guest_time(v)) /
                  STIME_PER_HPET_TICK;
@@ -695,7 +696,7 @@ static int hpet_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(HPET, hpet_save, NULL, hpet_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(HPET, hpet_save, hpet_load, 1, HVMSR_PER_DOM);
 
 static void hpet_set(HPETState *h)
 {
diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index 0de71cb55e..fe6c9c592f 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -731,7 +731,7 @@ void hvm_domain_destroy(struct domain *d)
     destroy_vpci_mmcfg(d);
 }
 
-static int hvm_save_tsc_adjust_one(struct vcpu *v, hvm_domain_context_t *h)
+static int hvm_save_tsc_adjust(struct vcpu *v, hvm_domain_context_t *h)
 {
     struct hvm_tsc_adjust ctxt = {
         .tsc_adjust = v->arch.hvm.msr_tsc_adjust,
@@ -740,21 +740,6 @@ static int hvm_save_tsc_adjust_one(struct vcpu *v, hvm_domain_context_t *h)
     return hvm_save_entry(TSC_ADJUST, v->vcpu_id, h, &ctxt);
 }
 
-static int hvm_save_tsc_adjust(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = hvm_save_tsc_adjust_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
 static int hvm_load_tsc_adjust(struct domain *d, hvm_domain_context_t *h)
 {
     unsigned int vcpuid = hvm_load_instance(h);
@@ -776,10 +761,9 @@ static int hvm_load_tsc_adjust(struct domain *d, hvm_domain_context_t *h)
 }
 
 HVM_REGISTER_SAVE_RESTORE(TSC_ADJUST, hvm_save_tsc_adjust,
-                          hvm_save_tsc_adjust_one,
                           hvm_load_tsc_adjust, 1, HVMSR_PER_VCPU);
 
-static int hvm_save_cpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h)
+static int hvm_save_cpu_ctxt(struct vcpu *v, hvm_domain_context_t *h)
 {
     struct segment_register seg;
     struct hvm_hw_cpu ctxt = {
@@ -886,21 +870,6 @@ static int hvm_save_cpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h)
     return hvm_save_entry(CPU, v->vcpu_id, h, &ctxt);
 }
 
-static int hvm_save_cpu_ctxt(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = hvm_save_cpu_ctxt_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
 /* Return a string indicating the error, or NULL for valid. */
 const char *hvm_efer_valid(const struct vcpu *v, uint64_t value,
                            signed int cr0_pg)
@@ -1157,14 +1126,14 @@ static int hvm_load_cpu_ctxt(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(CPU, hvm_save_cpu_ctxt, hvm_save_cpu_ctxt_one,
-                          hvm_load_cpu_ctxt, 1, HVMSR_PER_VCPU);
+HVM_REGISTER_SAVE_RESTORE(CPU, hvm_save_cpu_ctxt, hvm_load_cpu_ctxt, 1,
+                          HVMSR_PER_VCPU);
 
 #define HVM_CPU_XSAVE_SIZE(xcr0) (offsetof(struct hvm_hw_cpu_xsave, \
                                            save_area) + \
                                   xstate_ctxt_size(xcr0))
 
-static int hvm_save_cpu_xsave_states_one(struct vcpu *v, hvm_domain_context_t *h)
+static int hvm_save_cpu_xsave_states(struct vcpu *v, hvm_domain_context_t *h)
 {
     struct hvm_hw_cpu_xsave *ctxt;
     unsigned int size = HVM_CPU_XSAVE_SIZE(v->arch.xcr0_accum);
@@ -1189,21 +1158,6 @@ static int hvm_save_cpu_xsave_states_one(struct vcpu *v, hvm_domain_context_t *h
     return 0;
 }
 
-static int hvm_save_cpu_xsave_states(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = hvm_save_cpu_xsave_states_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
 /*
  * Structure layout conformity checks, documenting correctness of the cast in
  * the invocation of validate_xstate() below.
@@ -1340,7 +1294,7 @@ static const uint32_t msrs_to_send[] = {
 };
 static unsigned int __read_mostly msr_count_max = ARRAY_SIZE(msrs_to_send);
 
-static int hvm_save_cpu_msrs_one(struct vcpu *v, hvm_domain_context_t *h)
+static int hvm_save_cpu_msrs(struct vcpu *v, hvm_domain_context_t *h)
 {
     struct hvm_save_descriptor *desc = _p(&h->data[h->cur]);
     struct hvm_msr *ctxt;
@@ -1402,21 +1356,6 @@ static int hvm_save_cpu_msrs_one(struct vcpu *v, hvm_domain_context_t *h)
     return 0;
 }
 
-static int hvm_save_cpu_msrs(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = hvm_save_cpu_msrs_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
 static int hvm_load_cpu_msrs(struct domain *d, hvm_domain_context_t *h)
 {
     unsigned int i, vcpuid = hvm_load_instance(h);
@@ -1509,7 +1448,6 @@ static int __init hvm_register_CPU_save_and_restore(void)
     hvm_register_savevm(CPU_XSAVE_CODE,
                         "CPU_XSAVE",
                         hvm_save_cpu_xsave_states,
-                        hvm_save_cpu_xsave_states_one,
                         hvm_load_cpu_xsave_states,
                         HVM_CPU_XSAVE_SIZE(xfeature_mask) +
                             sizeof(struct hvm_save_descriptor),
@@ -1522,7 +1460,6 @@ static int __init hvm_register_CPU_save_and_restore(void)
         hvm_register_savevm(CPU_MSR_CODE,
                             "CPU_MSR",
                             hvm_save_cpu_msrs,
-                            hvm_save_cpu_msrs_one,
                             hvm_load_cpu_msrs,
                             HVM_CPU_MSR_SIZE(msr_count_max) +
                                 sizeof(struct hvm_save_descriptor),
diff --git a/xen/arch/x86/hvm/irq.c b/xen/arch/x86/hvm/irq.c
index 9502bae645..37040d1d47 100644
--- a/xen/arch/x86/hvm/irq.c
+++ b/xen/arch/x86/hvm/irq.c
@@ -639,8 +639,9 @@ static int __init dump_irq_info_key_init(void)
 }
 __initcall(dump_irq_info_key_init);
 
-static int irq_save_pci(struct domain *d, hvm_domain_context_t *h)
+static int irq_save_pci(struct vcpu *v, hvm_domain_context_t *h)
 {
+    struct domain *d = v->domain;
     struct hvm_irq *hvm_irq = hvm_domain_irq(d);
     unsigned int asserted, pdev, pintx;
     int rc;
@@ -671,16 +672,18 @@ static int irq_save_pci(struct domain *d, hvm_domain_context_t *h)
     return rc;
 }
 
-static int irq_save_isa(struct domain *d, hvm_domain_context_t *h)
+static int irq_save_isa(struct vcpu *v, hvm_domain_context_t *h)
 {
+    const struct domain *d = v->domain;
     struct hvm_irq *hvm_irq = hvm_domain_irq(d);
 
     /* Save ISA IRQ lines */
     return ( hvm_save_entry(ISA_IRQ, 0, h, &hvm_irq->isa_irq) );
 }
 
-static int irq_save_link(struct domain *d, hvm_domain_context_t *h)
+static int irq_save_link(struct vcpu *v, hvm_domain_context_t *h)
 {
+    const struct domain *d = v->domain;
     struct hvm_irq *hvm_irq = hvm_domain_irq(d);
 
     /* Save PCI-ISA link state */
@@ -773,9 +776,9 @@ static int irq_load_link(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PCI_IRQ, irq_save_pci, NULL, irq_load_pci,
+HVM_REGISTER_SAVE_RESTORE(PCI_IRQ, irq_save_pci, irq_load_pci,
                           1, HVMSR_PER_DOM);
-HVM_REGISTER_SAVE_RESTORE(ISA_IRQ, irq_save_isa, NULL, irq_load_isa,
+HVM_REGISTER_SAVE_RESTORE(ISA_IRQ, irq_save_isa, irq_load_isa,
                           1, HVMSR_PER_DOM);
-HVM_REGISTER_SAVE_RESTORE(PCI_LINK, irq_save_link, NULL, irq_load_link,
+HVM_REGISTER_SAVE_RESTORE(PCI_LINK, irq_save_link, irq_load_link,
                           1, HVMSR_PER_DOM);
diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c
index 2ddf5074cb..4f2f195f7d 100644
--- a/xen/arch/x86/hvm/mtrr.c
+++ b/xen/arch/x86/hvm/mtrr.c
@@ -690,7 +690,7 @@ int hvm_set_mem_pinned_cacheattr(struct domain *d, uint64_t gfn_start,
     return 0;
 }
 
-static int hvm_save_mtrr_msr_one(struct vcpu *v, hvm_domain_context_t *h)
+static int hvm_save_mtrr_msr(struct vcpu *v, hvm_domain_context_t *h)
 {
     const struct mtrr_state *mtrr_state = &v->arch.hvm.mtrr;
     struct hvm_hw_mtrr hw_mtrr = {
@@ -728,22 +728,6 @@ static int hvm_save_mtrr_msr_one(struct vcpu *v, hvm_domain_context_t *h)
     return hvm_save_entry(MTRR, v->vcpu_id, h, &hw_mtrr);
 }
 
-static int hvm_save_mtrr_msr(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    /* save mtrr&pat */
-    for_each_vcpu(d, v)
-    {
-       err = hvm_save_mtrr_msr_one(v, h);
-       if ( err )
-           break;
-    }
-
-    return err;
-}
-
 static int hvm_load_mtrr_msr(struct domain *d, hvm_domain_context_t *h)
 {
     unsigned int vcpuid, i;
@@ -794,8 +778,8 @@ static int hvm_load_mtrr_msr(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(MTRR, hvm_save_mtrr_msr, hvm_save_mtrr_msr_one,
-                          hvm_load_mtrr_msr, 1, HVMSR_PER_VCPU);
+HVM_REGISTER_SAVE_RESTORE(MTRR, hvm_save_mtrr_msr, hvm_load_mtrr_msr, 1,
+                          HVMSR_PER_VCPU);
 
 void memory_type_changed(struct domain *d)
 {
diff --git a/xen/arch/x86/hvm/pmtimer.c b/xen/arch/x86/hvm/pmtimer.c
index bd2fd35308..1f0d834bae 100644
--- a/xen/arch/x86/hvm/pmtimer.c
+++ b/xen/arch/x86/hvm/pmtimer.c
@@ -249,8 +249,9 @@ static int handle_pmt_io(
     return X86EMUL_OKAY;
 }
 
-static int acpi_save(struct domain *d, hvm_domain_context_t *h)
+static int acpi_save(struct vcpu *v, hvm_domain_context_t *h)
 {
+    struct domain *d = v->domain;
     struct hvm_hw_acpi *acpi = &d->arch.hvm.acpi;
     PMTState *s = &d->arch.hvm.pl_time->vpmt;
     uint32_t x, msb = acpi->tmr_val & TMR_VAL_MSB;
@@ -309,7 +310,7 @@ static int acpi_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PMTIMER, acpi_save, NULL, acpi_load,
+HVM_REGISTER_SAVE_RESTORE(PMTIMER, acpi_save, acpi_load,
                           1, HVMSR_PER_DOM);
 
 int pmtimer_change_ioport(struct domain *d, unsigned int version)
diff --git a/xen/arch/x86/hvm/rtc.c b/xen/arch/x86/hvm/rtc.c
index eb67ce01a2..42339682e8 100644
--- a/xen/arch/x86/hvm/rtc.c
+++ b/xen/arch/x86/hvm/rtc.c
@@ -737,8 +737,9 @@ void rtc_migrate_timers(struct vcpu *v)
 }
 
 /* Save RTC hardware state */
-static int rtc_save(struct domain *d, hvm_domain_context_t *h)
+static int rtc_save(struct vcpu *v, hvm_domain_context_t *h)
 {
+    const struct domain *d = v->domain;
     RTCState *s = domain_vrtc(d);
     int rc;
 
@@ -783,7 +784,7 @@ static int rtc_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(RTC, rtc_save, NULL, rtc_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(RTC, rtc_save, rtc_load, 1, HVMSR_PER_DOM);
 
 void rtc_reset(struct domain *d)
 {
diff --git a/xen/arch/x86/hvm/save.c b/xen/arch/x86/hvm/save.c
index e059ab4e13..3a7291949f 100644
--- a/xen/arch/x86/hvm/save.c
+++ b/xen/arch/x86/hvm/save.c
@@ -85,7 +85,6 @@ int arch_hvm_load(struct domain *d, struct hvm_save_header *hdr)
 /* List of handlers for various HVM save and restore types */
 static struct {
     hvm_save_handler save;
-    hvm_save_vcpu_handler save_one;
     hvm_load_handler load;
     const char *name;
     size_t size;
@@ -96,7 +95,6 @@ static struct {
 void __init hvm_register_savevm(uint16_t typecode,
                                 const char *name,
                                 hvm_save_handler save_state,
-                                hvm_save_vcpu_handler save_one,
                                 hvm_load_handler load_state,
                                 size_t size, int kind)
 {
@@ -104,7 +102,6 @@ void __init hvm_register_savevm(uint16_t typecode,
     ASSERT(hvm_sr_handlers[typecode].save == NULL);
     ASSERT(hvm_sr_handlers[typecode].load == NULL);
     hvm_sr_handlers[typecode].save = save_state;
-    hvm_sr_handlers[typecode].save_one = save_one;
     hvm_sr_handlers[typecode].load = load_state;
     hvm_sr_handlers[typecode].name = name;
     hvm_sr_handlers[typecode].size = size;
@@ -141,6 +138,7 @@ int hvm_save_one(struct domain *d, unsigned int typecode, unsigned int instance,
     int rv;
     hvm_domain_context_t ctxt = { };
     const struct hvm_save_descriptor *desc;
+    struct vcpu *v;
 
     if ( d->is_dying ||
          typecode > HVM_SAVE_CODE_MAX ||
@@ -148,14 +146,18 @@ int hvm_save_one(struct domain *d, unsigned int typecode, unsigned int instance,
          !hvm_sr_handlers[typecode].save )
         return -EINVAL;
 
+    if ( hvm_sr_handlers[typecode].kind != HVMSR_PER_VCPU )
+        v = d->vcpu[0];
+    else if ( instance >= d->max_vcpus || !d->vcpu[instance] )
+        return -ENOENT;
+    else
+        v = d->vcpu[instance];
     ctxt.size = hvm_sr_handlers[typecode].size;
-    if ( hvm_sr_handlers[typecode].kind == HVMSR_PER_VCPU )
-        ctxt.size *= d->max_vcpus;
     ctxt.data = xmalloc_bytes(ctxt.size);
     if ( !ctxt.data )
         return -ENOMEM;
 
-    if ( (rv = hvm_sr_handlers[typecode].save(d, &ctxt)) != 0 )
+    if ( (rv = hvm_sr_handlers[typecode].save(v, &ctxt)) != 0 )
         printk(XENLOG_G_ERR "HVM%d save: failed to save type %"PRIu16" (%d)\n",
                d->domain_id, typecode, rv);
     else if ( rv = -ENOENT, ctxt.cur >= sizeof(*desc) )
@@ -222,10 +224,12 @@ int hvm_save(struct domain *d, hvm_domain_context_t *h)
     /* Save all available kinds of state */
     for ( i = 0; i <= HVM_SAVE_CODE_MAX; i++ )
     {
-        hvm_save_vcpu_handler save_one_handler = hvm_sr_handlers[i].save_one;
         hvm_save_handler handler = hvm_sr_handlers[i].save;
 
-        if ( save_one_handler )
+        if ( !handler )
+            continue;
+
+        if ( hvm_sr_handlers[i].kind == HVMSR_PER_VCPU )
         {
             struct vcpu *v;
 
@@ -233,7 +237,7 @@ int hvm_save(struct domain *d, hvm_domain_context_t *h)
             {
                 printk(XENLOG_G_INFO "HVM %pv save: %s\n",
                        v, hvm_sr_handlers[i].name);
-                if ( save_one_handler(v, h) != 0 )
+                if ( handler(v, h) != 0 )
                 {
                     printk(XENLOG_G_ERR
                            "HVM %pv save: failed to save type %"PRIu16"\n",
@@ -242,14 +246,14 @@ int hvm_save(struct domain *d, hvm_domain_context_t *h)
                 }
             }
         }
-        else if ( handler )
+        else
         {
-            printk(XENLOG_G_INFO "HVM%d save: %s\n",
+            printk(XENLOG_G_INFO "HVM d%d save: %s\n",
                    d->domain_id, hvm_sr_handlers[i].name);
-            if ( handler(d, h) != 0 )
+            if ( handler(d->vcpu[0], h) != 0 )
             {
                 printk(XENLOG_G_ERR
-                       "HVM%d save: failed to save type %"PRIu16"\n",
+                       "HVM d%d save: failed to save type %"PRIu16"\n",
                        d->domain_id, i);
                 return -ENODATA;
             }
diff --git a/xen/arch/x86/hvm/vioapic.c b/xen/arch/x86/hvm/vioapic.c
index b2cffe14d6..2b74f92d51 100644
--- a/xen/arch/x86/hvm/vioapic.c
+++ b/xen/arch/x86/hvm/vioapic.c
@@ -569,8 +569,9 @@ int vioapic_get_trigger_mode(const struct domain *d, unsigned int gsi)
     return vioapic->redirtbl[pin].fields.trig_mode;
 }
 
-static int ioapic_save(struct domain *d, hvm_domain_context_t *h)
+static int ioapic_save(struct vcpu *v, hvm_domain_context_t *h)
 {
+    const struct domain *d = v->domain;
     struct hvm_vioapic *s;
 
     if ( !has_vioapic(d) )
@@ -601,7 +602,7 @@ static int ioapic_load(struct domain *d, hvm_domain_context_t *h)
     return hvm_load_entry(IOAPIC, h, &s->domU);
 }
 
-HVM_REGISTER_SAVE_RESTORE(IOAPIC, ioapic_save, NULL, ioapic_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(IOAPIC, ioapic_save, ioapic_load, 1, HVMSR_PER_DOM);
 
 void vioapic_reset(struct domain *d)
 {
diff --git a/xen/arch/x86/hvm/viridian.c b/xen/arch/x86/hvm/viridian.c
index 3859333645..d7ab94bbab 100644
--- a/xen/arch/x86/hvm/viridian.c
+++ b/xen/arch/x86/hvm/viridian.c
@@ -994,8 +994,9 @@ out:
     return HVM_HCALL_completed;
 }
 
-static int viridian_save_domain_ctxt(struct domain *d, hvm_domain_context_t *h)
+static int viridian_save_domain_ctxt(struct vcpu *v, hvm_domain_context_t *h)
 {
+    const struct domain *d = v->domain;
     struct hvm_viridian_domain_context ctxt = {
         .time_ref_count = d->arch.hvm.viridian.time_ref_count.val,
         .hypercall_gpa  = d->arch.hvm.viridian.hypercall_gpa.raw,
@@ -1027,10 +1028,10 @@ static int viridian_load_domain_ctxt(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(VIRIDIAN_DOMAIN, viridian_save_domain_ctxt, NULL,
+HVM_REGISTER_SAVE_RESTORE(VIRIDIAN_DOMAIN, viridian_save_domain_ctxt,
                           viridian_load_domain_ctxt, 1, HVMSR_PER_DOM);
 
-static int viridian_save_vcpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h)
+static int viridian_save_vcpu_ctxt(struct vcpu *v, hvm_domain_context_t *h)
 {
     struct hvm_viridian_vcpu_context ctxt = {
         .vp_assist_msr = v->arch.hvm.viridian.vp_assist.msr.raw,
@@ -1043,21 +1044,6 @@ static int viridian_save_vcpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h)
     return hvm_save_entry(VIRIDIAN_VCPU, v->vcpu_id, h, &ctxt);
 }
 
-static int viridian_save_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = viridian_save_vcpu_ctxt_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
 static int viridian_load_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h)
 {
     unsigned int vcpuid = hvm_load_instance(h);
@@ -1088,7 +1074,6 @@ static int viridian_load_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h)
 }
 
 HVM_REGISTER_SAVE_RESTORE(VIRIDIAN_VCPU, viridian_save_vcpu_ctxt,
-                          viridian_save_vcpu_ctxt_one,
                           viridian_load_vcpu_ctxt, 1, HVMSR_PER_VCPU);
 
 static int __init parse_viridian_version(const char *arg)
diff --git a/xen/arch/x86/hvm/vlapic.c b/xen/arch/x86/hvm/vlapic.c
index ee2c66ef9c..8a4a17311f 100644
--- a/xen/arch/x86/hvm/vlapic.c
+++ b/xen/arch/x86/hvm/vlapic.c
@@ -1399,7 +1399,7 @@ static void lapic_rearm(struct vlapic *s)
     s->timer_last_update = s->pt.last_plt_gtime;
 }
 
-static int lapic_save_hidden_one(struct vcpu *v, hvm_domain_context_t *h)
+static int lapic_save_hidden(struct vcpu *v, hvm_domain_context_t *h)
 {
     if ( !has_vlapic(v->domain) )
         return 0;
@@ -1407,22 +1407,7 @@ static int lapic_save_hidden_one(struct vcpu *v, hvm_domain_context_t *h)
     return hvm_save_entry(LAPIC, v->vcpu_id, h, &vcpu_vlapic(v)->hw);
 }
 
-static int lapic_save_hidden(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = lapic_save_hidden_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
-static int lapic_save_regs_one(struct vcpu *v, hvm_domain_context_t *h)
+static int lapic_save_regs(struct vcpu *v, hvm_domain_context_t *h)
 {
     if ( !has_vlapic(v->domain) )
         return 0;
@@ -1433,21 +1418,6 @@ static int lapic_save_regs_one(struct vcpu *v, hvm_domain_context_t *h)
     return hvm_save_entry(LAPIC_REGS, v->vcpu_id, h, vcpu_vlapic(v)->regs);
 }
 
-static int lapic_save_regs(struct domain *d, hvm_domain_context_t *h)
-{
-    struct vcpu *v;
-    int err = 0;
-
-    for_each_vcpu ( d, v )
-    {
-        err = lapic_save_regs_one(v, h);
-        if ( err )
-            break;
-    }
-
-    return err;
-}
-
 /*
  * Following lapic_load_hidden()/lapic_load_regs() we may need to
  * correct ID and LDR when they come from an old, broken hypervisor.
@@ -1546,9 +1516,9 @@ static int lapic_load_regs(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(LAPIC, lapic_save_hidden, lapic_save_hidden_one,
+HVM_REGISTER_SAVE_RESTORE(LAPIC, lapic_save_hidden,
                           lapic_load_hidden, 1, HVMSR_PER_VCPU);
-HVM_REGISTER_SAVE_RESTORE(LAPIC_REGS, lapic_save_regs, lapic_save_regs_one,
+HVM_REGISTER_SAVE_RESTORE(LAPIC_REGS, lapic_save_regs,
                           lapic_load_regs, 1, HVMSR_PER_VCPU);
 
 int vlapic_init(struct vcpu *v)
diff --git a/xen/arch/x86/hvm/vpic.c b/xen/arch/x86/hvm/vpic.c
index 57eeae5c4d..3f3fb7a4ff 100644
--- a/xen/arch/x86/hvm/vpic.c
+++ b/xen/arch/x86/hvm/vpic.c
@@ -372,8 +372,9 @@ static int vpic_intercept_elcr_io(
     return X86EMUL_OKAY;
 }
 
-static int vpic_save(struct domain *d, hvm_domain_context_t *h)
+static int vpic_save(struct vcpu *v, hvm_domain_context_t *h)
 {
+    struct domain *d = v->domain;
     struct hvm_hw_vpic *s;
     int i;
 
@@ -411,7 +412,7 @@ static int vpic_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PIC, vpic_save, NULL, vpic_load, 2, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(PIC, vpic_save, vpic_load, 2, HVMSR_PER_DOM);
 
 void vpic_reset(struct domain *d)
 {
diff --git a/xen/include/asm-x86/hvm/save.h b/xen/include/asm-x86/hvm/save.h
index 0dca46d770..4efc535055 100644
--- a/xen/include/asm-x86/hvm/save.h
+++ b/xen/include/asm-x86/hvm/save.h
@@ -95,10 +95,8 @@ static inline unsigned int hvm_load_instance(const struct hvm_domain_context *h)
  * The save handler may save multiple instances of a type into the buffer;
  * the load handler will be called once for each instance found when
  * restoring.  Both return non-zero on error. */
-typedef int (*hvm_save_handler) (struct domain *d,
+typedef int (*hvm_save_handler) (struct vcpu *v,
                                  hvm_domain_context_t *h);
-typedef int (*hvm_save_vcpu_handler)(struct  vcpu *v,
-                                     hvm_domain_context_t *h);
 typedef int (*hvm_load_handler) (struct domain *d,
                                  hvm_domain_context_t *h);
 
@@ -107,7 +105,6 @@ typedef int (*hvm_load_handler) (struct domain *d,
 void hvm_register_savevm(uint16_t typecode,
                          const char *name,
                          hvm_save_handler save_state,
-                         hvm_save_vcpu_handler save_one,
                          hvm_load_handler load_state,
                          size_t size, int kind);
 
@@ -117,13 +114,12 @@ void hvm_register_savevm(uint16_t typecode,
 
 /* Syntactic sugar around that function: specify the max number of
  * saves, and this calculates the size of buffer needed */
-#define HVM_REGISTER_SAVE_RESTORE(_x, _save, _save_one, _load, _num, _k)  \
+#define HVM_REGISTER_SAVE_RESTORE(_x, _save, _load, _num, _k)             \
 static int __init __hvm_register_##_x##_save_and_restore(void)            \
 {                                                                         \
     hvm_register_savevm(HVM_SAVE_CODE(_x),                                \
                         #_x,                                              \
                         &_save,                                           \
-                        _save_one,                                        \
                         &_load,                                           \
                         (_num) * (HVM_SAVE_LENGTH(_x)                     \
                                   + sizeof (struct hvm_save_descriptor)), \
--
generated by git-patchbot for /home/xen/git/xen.git#staging

_______________________________________________
Xen-changelog mailing list
[hidden email]
https://lists.xenproject.org/xen-changelog