[xen staging] x86/hvm: add handler for save_one funcs

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[xen staging] x86/hvm: add handler for save_one funcs

patchbot
commit b39605fa3f2b7486e58e89466fef20fe6a4a2c55
Author:     Alexandru Isaila <[hidden email]>
AuthorDate: Mon Sep 10 16:27:00 2018 +0200
Commit:     Jan Beulich <[hidden email]>
CommitDate: Wed Sep 12 16:41:41 2018 +0200

    x86/hvm: add handler for save_one funcs
   
    Signed-off-by: Alexandru Isaila <[hidden email]>
    Reviewed-by: Jan Beulich <[hidden email]>
---
 xen/arch/x86/cpu/mcheck/vmce.c | 1 +
 xen/arch/x86/emul-i8254.c      | 2 +-
 xen/arch/x86/hvm/hpet.c        | 2 +-
 xen/arch/x86/hvm/hvm.c         | 7 +++++--
 xen/arch/x86/hvm/irq.c         | 6 +++---
 xen/arch/x86/hvm/mtrr.c        | 4 ++--
 xen/arch/x86/hvm/pmtimer.c     | 2 +-
 xen/arch/x86/hvm/rtc.c         | 2 +-
 xen/arch/x86/hvm/save.c        | 3 +++
 xen/arch/x86/hvm/vioapic.c     | 2 +-
 xen/arch/x86/hvm/viridian.c    | 3 ++-
 xen/arch/x86/hvm/vlapic.c      | 8 ++++----
 xen/arch/x86/hvm/vpic.c        | 2 +-
 xen/include/asm-x86/hvm/save.h | 6 +++++-
 14 files changed, 31 insertions(+), 19 deletions(-)

diff --git a/xen/arch/x86/cpu/mcheck/vmce.c b/xen/arch/x86/cpu/mcheck/vmce.c
index c2b2b6623c..71afc06f9a 100644
--- a/xen/arch/x86/cpu/mcheck/vmce.c
+++ b/xen/arch/x86/cpu/mcheck/vmce.c
@@ -397,6 +397,7 @@ 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 7f1ded2623..a85dfcccbc 100644
--- a/xen/arch/x86/emul-i8254.c
+++ b/xen/arch/x86/emul-i8254.c
@@ -438,7 +438,7 @@ static int pit_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PIT, pit_save, pit_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(PIT, pit_save, NULL, 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 cbd1efbc9f..4d8f6da2d9 100644
--- a/xen/arch/x86/hvm/hpet.c
+++ b/xen/arch/x86/hvm/hpet.c
@@ -695,7 +695,7 @@ static int hpet_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(HPET, hpet_save, hpet_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(HPET, hpet_save, NULL, 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 198caa3710..0de71cb55e 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -776,6 +776,7 @@ 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)
@@ -1156,8 +1157,8 @@ 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_load_cpu_ctxt,
-                          1, HVMSR_PER_VCPU);
+HVM_REGISTER_SAVE_RESTORE(CPU, hvm_save_cpu_ctxt, hvm_save_cpu_ctxt_one,
+                          hvm_load_cpu_ctxt, 1, HVMSR_PER_VCPU);
 
 #define HVM_CPU_XSAVE_SIZE(xcr0) (offsetof(struct hvm_hw_cpu_xsave, \
                                            save_area) + \
@@ -1508,6 +1509,7 @@ 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),
@@ -1520,6 +1522,7 @@ 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 fe2c2fa06c..9502bae645 100644
--- a/xen/arch/x86/hvm/irq.c
+++ b/xen/arch/x86/hvm/irq.c
@@ -773,9 +773,9 @@ static int irq_load_link(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PCI_IRQ, irq_save_pci, irq_load_pci,
+HVM_REGISTER_SAVE_RESTORE(PCI_IRQ, irq_save_pci, NULL, irq_load_pci,
                           1, HVMSR_PER_DOM);
-HVM_REGISTER_SAVE_RESTORE(ISA_IRQ, irq_save_isa, irq_load_isa,
+HVM_REGISTER_SAVE_RESTORE(ISA_IRQ, irq_save_isa, NULL, irq_load_isa,
                           1, HVMSR_PER_DOM);
-HVM_REGISTER_SAVE_RESTORE(PCI_LINK, irq_save_link, irq_load_link,
+HVM_REGISTER_SAVE_RESTORE(PCI_LINK, irq_save_link, NULL, irq_load_link,
                           1, HVMSR_PER_DOM);
diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c
index f3dd972b4a..2ddf5074cb 100644
--- a/xen/arch/x86/hvm/mtrr.c
+++ b/xen/arch/x86/hvm/mtrr.c
@@ -794,8 +794,8 @@ 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_load_mtrr_msr,
-                          1, HVMSR_PER_VCPU);
+HVM_REGISTER_SAVE_RESTORE(MTRR, hvm_save_mtrr_msr, hvm_save_mtrr_msr_one,
+                          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 8542a32d36..bd2fd35308 100644
--- a/xen/arch/x86/hvm/pmtimer.c
+++ b/xen/arch/x86/hvm/pmtimer.c
@@ -309,7 +309,7 @@ static int acpi_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PMTIMER, acpi_save, acpi_load,
+HVM_REGISTER_SAVE_RESTORE(PMTIMER, acpi_save, NULL, 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 1828587afd..eb67ce01a2 100644
--- a/xen/arch/x86/hvm/rtc.c
+++ b/xen/arch/x86/hvm/rtc.c
@@ -783,7 +783,7 @@ static int rtc_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(RTC, rtc_save, rtc_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(RTC, rtc_save, NULL, 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 0ace160c92..870042b27f 100644
--- a/xen/arch/x86/hvm/save.c
+++ b/xen/arch/x86/hvm/save.c
@@ -85,6 +85,7 @@ 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;
@@ -95,6 +96,7 @@ 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)
 {
@@ -102,6 +104,7 @@ 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;
diff --git a/xen/arch/x86/hvm/vioapic.c b/xen/arch/x86/hvm/vioapic.c
index 96754246ad..b2cffe14d6 100644
--- a/xen/arch/x86/hvm/vioapic.c
+++ b/xen/arch/x86/hvm/vioapic.c
@@ -601,7 +601,7 @@ 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, ioapic_load, 1, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(IOAPIC, ioapic_save, NULL, 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 2df0127a46..3859333645 100644
--- a/xen/arch/x86/hvm/viridian.c
+++ b/xen/arch/x86/hvm/viridian.c
@@ -1027,7 +1027,7 @@ 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,
+HVM_REGISTER_SAVE_RESTORE(VIRIDIAN_DOMAIN, viridian_save_domain_ctxt, NULL,
                           viridian_load_domain_ctxt, 1, HVMSR_PER_DOM);
 
 static int viridian_save_vcpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h)
@@ -1088,6 +1088,7 @@ 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 8b2955365f..ee2c66ef9c 100644
--- a/xen/arch/x86/hvm/vlapic.c
+++ b/xen/arch/x86/hvm/vlapic.c
@@ -1546,10 +1546,10 @@ static int lapic_load_regs(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-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_load_regs,
-                          1, HVMSR_PER_VCPU);
+HVM_REGISTER_SAVE_RESTORE(LAPIC, lapic_save_hidden, lapic_save_hidden_one,
+                          lapic_load_hidden, 1, HVMSR_PER_VCPU);
+HVM_REGISTER_SAVE_RESTORE(LAPIC_REGS, lapic_save_regs, lapic_save_regs_one,
+                          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 82bed20cdd..57eeae5c4d 100644
--- a/xen/arch/x86/hvm/vpic.c
+++ b/xen/arch/x86/hvm/vpic.c
@@ -411,7 +411,7 @@ static int vpic_load(struct domain *d, hvm_domain_context_t *h)
     return 0;
 }
 
-HVM_REGISTER_SAVE_RESTORE(PIC, vpic_save, vpic_load, 2, HVMSR_PER_DOM);
+HVM_REGISTER_SAVE_RESTORE(PIC, vpic_save, NULL, 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 5a3b347e0d..0dca46d770 100644
--- a/xen/include/asm-x86/hvm/save.h
+++ b/xen/include/asm-x86/hvm/save.h
@@ -97,6 +97,8 @@ static inline unsigned int hvm_load_instance(const struct hvm_domain_context *h)
  * restoring.  Both return non-zero on error. */
 typedef int (*hvm_save_handler) (struct domain *d,
                                  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);
 
@@ -105,6 +107,7 @@ 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);
 
@@ -114,12 +117,13 @@ 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, _load, _num, _k)             \
+#define HVM_REGISTER_SAVE_RESTORE(_x, _save, _save_one, _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)), \
--
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