Improved consistency around the naming of load/store register fn's. this
is required since we want to roundtrip more registers in a migration
than what's currently required for MMIO emulation.
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
---
accel/mshv/mshv-all.c | 2 +-
include/system/mshv_int.h | 6 ++---
target/i386/mshv/mshv-cpu.c | 52 ++++++++++++++-----------------------
3 files changed, 23 insertions(+), 37 deletions(-)
diff --git a/accel/mshv/mshv-all.c b/accel/mshv/mshv-all.c
index d4cc7f5371..7c0eb68a5b 100644
--- a/accel/mshv/mshv-all.c
+++ b/accel/mshv/mshv-all.c
@@ -650,7 +650,7 @@ static void mshv_cpu_synchronize_pre_loadvm(CPUState *cpu)
static void do_mshv_cpu_synchronize(CPUState *cpu, run_on_cpu_data arg)
{
if (!cpu->accel->dirty) {
- int ret = mshv_load_regs(cpu);
+ int ret = mshv_arch_load_regs(cpu);
if (ret < 0) {
error_report("Failed to load registers for vcpu %d",
cpu->cpu_index);
diff --git a/include/system/mshv_int.h b/include/system/mshv_int.h
index 35386c422f..a142dd241a 100644
--- a/include/system/mshv_int.h
+++ b/include/system/mshv_int.h
@@ -82,11 +82,9 @@ void mshv_init_mmio_emu(void);
int mshv_create_vcpu(int vm_fd, uint8_t vp_index, int *cpu_fd);
void mshv_remove_vcpu(int vm_fd, int cpu_fd);
int mshv_configure_vcpu(const CPUState *cpu, const MshvFPU *fpu, uint64_t xcr0);
-int mshv_get_standard_regs(CPUState *cpu);
-int mshv_get_special_regs(CPUState *cpu);
int mshv_run_vcpu(int vm_fd, CPUState *cpu, hv_message *msg, MshvVmExit *exit);
-int mshv_load_regs(CPUState *cpu);
-int mshv_store_regs(CPUState *cpu);
+int mshv_arch_load_regs(CPUState *cpu);
+int mshv_arch_store_regs(CPUState *cpu);
int mshv_set_generic_regs(const CPUState *cpu, const hv_register_assoc *assocs,
size_t n_regs);
int mshv_arch_put_registers(const CPUState *cpu);
diff --git a/target/i386/mshv/mshv-cpu.c b/target/i386/mshv/mshv-cpu.c
index 2bc978deb2..9456e75277 100644
--- a/target/i386/mshv/mshv-cpu.c
+++ b/target/i386/mshv/mshv-cpu.c
@@ -107,6 +107,8 @@ static enum hv_register_name FPU_REGISTER_NAMES[26] = {
HV_X64_REGISTER_XMM_CONTROL_STATUS,
};
+static int set_special_regs(const CPUState *cpu);
+
static int translate_gva(const CPUState *cpu, uint64_t gva, uint64_t *gpa,
uint64_t flags)
{
@@ -285,7 +287,7 @@ static int set_standard_regs(const CPUState *cpu)
return 0;
}
-int mshv_store_regs(CPUState *cpu)
+int mshv_arch_store_regs(CPUState *cpu)
{
int ret;
@@ -295,6 +297,12 @@ int mshv_store_regs(CPUState *cpu)
return -1;
}
+ ret = set_special_regs(cpu);
+ if (ret < 0) {
+ error_report("Failed to store speical registers");
+ return ret;
+ }
+
return 0;
}
@@ -323,7 +331,7 @@ static void populate_standard_regs(const hv_register_assoc *assocs,
rflags_to_lflags(env);
}
-int mshv_get_standard_regs(CPUState *cpu)
+static int get_standard_regs(CPUState *cpu)
{
struct hv_register_assoc assocs[ARRAY_SIZE(STANDARD_REGISTER_NAMES)];
int ret;
@@ -401,8 +409,7 @@ static void populate_special_regs(const hv_register_assoc *assocs,
cpu_set_apic_base(x86cpu->apic_state, assocs[16].value.reg64);
}
-
-int mshv_get_special_regs(CPUState *cpu)
+static int get_special_regs(CPUState *cpu)
{
struct hv_register_assoc assocs[ARRAY_SIZE(SPECIAL_REGISTER_NAMES)];
int ret;
@@ -422,17 +429,17 @@ int mshv_get_special_regs(CPUState *cpu)
return 0;
}
-int mshv_load_regs(CPUState *cpu)
+int mshv_arch_load_regs(CPUState *cpu)
{
int ret;
- ret = mshv_get_standard_regs(cpu);
+ ret = get_standard_regs(cpu);
if (ret < 0) {
error_report("Failed to load standard registers");
return -1;
}
- ret = mshv_get_special_regs(cpu);
+ ret = get_special_regs(cpu);
if (ret < 0) {
error_report("Failed to load special registers");
return -1;
@@ -1103,16 +1110,16 @@ static int emulate_instruction(CPUState *cpu,
int ret;
x86_insn_stream stream = { .bytes = insn_bytes, .len = insn_len };
- ret = mshv_load_regs(cpu);
+ ret = mshv_arch_load_regs(cpu);
if (ret < 0) {
- error_report("failed to load registers");
+ error_report("Failed to load registers");
return -1;
}
decode_instruction_stream(env, &decode, &stream);
exec_instruction(env, &decode);
- ret = mshv_store_regs(cpu);
+ ret = mshv_arch_store_regs(cpu);
if (ret < 0) {
error_report("failed to store registers");
return -1;
@@ -1291,25 +1298,6 @@ static int handle_pio_non_str(const CPUState *cpu,
return 0;
}
-static int fetch_guest_state(CPUState *cpu)
-{
- int ret;
-
- ret = mshv_get_standard_regs(cpu);
- if (ret < 0) {
- error_report("Failed to get standard registers");
- return -1;
- }
-
- ret = mshv_get_special_regs(cpu);
- if (ret < 0) {
- error_report("Failed to get special registers");
- return -1;
- }
-
- return 0;
-}
-
static int read_memory(const CPUState *cpu, uint64_t initial_gva,
uint64_t initial_gpa, uint64_t gva, uint8_t *data,
size_t len)
@@ -1429,9 +1417,9 @@ static int handle_pio_str(CPUState *cpu, hv_x64_io_port_intercept_message *info)
X86CPU *x86_cpu = X86_CPU(cpu);
CPUX86State *env = &x86_cpu->env;
- ret = fetch_guest_state(cpu);
+ ret = mshv_arch_load_regs(cpu);
if (ret < 0) {
- error_report("Failed to fetch guest state");
+ error_report("Failed to load registers");
return -1;
}
@@ -1462,7 +1450,7 @@ static int handle_pio_str(CPUState *cpu, hv_x64_io_port_intercept_message *info)
ret = set_x64_registers(cpu, reg_names, reg_values);
if (ret < 0) {
- error_report("Failed to set x64 registers");
+ error_report("Failed to set RIP and RAX registers");
return -1;
}
--
2.34.1