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[Qemu-devel] [PULL 14/15] target-i386: kvm: Simplify MSR setting functio
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PULL 14/15] target-i386: kvm: Simplify MSR setting functions |
Date: |
Mon, 23 May 2016 16:24:26 -0300 |
Simplify kvm_put_tscdeadline_msr() and
kvm_put_msr_feature_control() using kvm_msr_buf and the
kvm_msr_entry_add() helper.
Reviewed-by: Paolo Bonzini <address@hidden>
Signed-off-by: Eduardo Habkost <address@hidden>
---
target-i386/kvm.c | 27 ++++++---------------------
1 file changed, 6 insertions(+), 21 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index dbe0f90..0b56b38 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -1487,24 +1487,16 @@ static void kvm_msr_entry_add(X86CPU *cpu, uint32_t
index, uint64_t value)
static int kvm_put_tscdeadline_msr(X86CPU *cpu)
{
CPUX86State *env = &cpu->env;
- struct {
- struct kvm_msrs info;
- struct kvm_msr_entry entries[1];
- } msr_data;
- struct kvm_msr_entry *msrs = msr_data.entries;
int ret;
if (!has_msr_tsc_deadline) {
return 0;
}
- kvm_msr_entry_set(&msrs[0], MSR_IA32_TSCDEADLINE, env->tsc_deadline);
-
- msr_data.info = (struct kvm_msrs) {
- .nmsrs = 1,
- };
+ kvm_msr_buf_reset(cpu);
+ kvm_msr_entry_add(cpu, MSR_IA32_TSCDEADLINE, env->tsc_deadline);
- ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, &msr_data);
+ ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, cpu->kvm_msr_buf);
if (ret < 0) {
return ret;
}
@@ -1521,24 +1513,17 @@ static int kvm_put_tscdeadline_msr(X86CPU *cpu)
*/
static int kvm_put_msr_feature_control(X86CPU *cpu)
{
- struct {
- struct kvm_msrs info;
- struct kvm_msr_entry entry;
- } msr_data;
int ret;
if (!has_msr_feature_control) {
return 0;
}
- kvm_msr_entry_set(&msr_data.entry, MSR_IA32_FEATURE_CONTROL,
+ kvm_msr_buf_reset(cpu);
+ kvm_msr_entry_add(cpu, MSR_IA32_FEATURE_CONTROL,
cpu->env.msr_ia32_feature_control);
- msr_data.info = (struct kvm_msrs) {
- .nmsrs = 1,
- };
-
- ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, &msr_data);
+ ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, cpu->kvm_msr_buf);
if (ret < 0) {
return ret;
}
--
2.5.5
- [Qemu-devel] [PULL 03/15] target-i386: kvm: Use X86XSaveArea struct for xsave save/load, (continued)
- [Qemu-devel] [PULL 03/15] target-i386: kvm: Use X86XSaveArea struct for xsave save/load, Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 10/15] target-i386: Call cpu_exec_init() on realize, Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 11/15] target-i386: kvm: Allocate kvm_msrs struct once per VCPU, Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 06/15] target-i386: Set constant model_id for qemu63/qemu32/athlon, Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 07/15] cpu: Eliminate cpudef_init(), cpudef_setup(), Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 08/15] target-i386: Move TCG initialization check to tcg_x86_init(), Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 12/15] target-i386: kvm: Increase MSR_BUF_SIZE, Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 09/15] target-i386: Move TCG initialization to realize time, Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 14/15] target-i386: kvm: Simplify MSR setting functions,
Eduardo Habkost <=
- [Qemu-devel] [PULL 13/15] target-i386: kvm: Simplify MSR array construction, Eduardo Habkost, 2016/05/23
- [Qemu-devel] [PULL 15/15] target-i386: kvm: Eliminate kvm_msr_entry_set(), Eduardo Habkost, 2016/05/23
- Re: [Qemu-devel] [PULL 00/15] X86 queue, 2016-05-23, Eduardo Habkost, 2016/05/23