[PATCH v1 1/1] target/i386: Save/restore the nested flag of an exception

during VM context save/restore and live migration. Signed-off-by: Xin Li (Intel) --- linux-headers/asm-x86/kvm.h | 4 +++- linux-headers/linux/kvm.h | 1 + target/i386/cpu.c | 1 + target/i386/cpu.h | 1 + target/i386/kvm/kvm.c

[PATCH v1 0/3] target/i386: Add the immediate form MSR access instruction support

advertised through bit 5 of CPUID.7.1.ECX, which needs to be added as a new CPU feature word. WRMSRNS doesn't become a required feature for FERD, and Linux has removed the dependency, as such remove the dependency from Qemu. Xin Li (Intel) (3): target/i386: Remove FRED dependency on WR

[PATCH v1 1/3] target/i386: Remove FRED dependency on WRMSRNS

WRMSRNS doesn't become a required feature for FERD, and Linux has removed the dependency, as such remove it from Qemu. Signed-off-by: Xin Li (Intel) --- target/i386/cpu.c | 4 1 file changed, 4 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 0b639848cd..8a122

[PATCH v1 2/3] target/i386: Add a new CPU feature word for CPUID.7.1.ECX

The immediate form of MSR access instructions will use this new CPU feature word. Signed-off-by: Xin Li (Intel) --- target/i386/cpu.c | 23 ++- target/i386/cpu.h | 1 + 2 files changed, 23 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c

[PATCH v1 3/3] target/i386: Add the immediate form MSR access instruction support

The immediate form of MSR access instructions are primarily motivated by performance, not code size: by having the MSR number in an immediate, it is available *much* earlier in the pipeline, which allows the hardware much more leeway about how a particular MSR is handled. Signed-off-by: Xin Li

[PATCH v1 0/3] target/i386: Add nested FRED support

This patch set adds nested FRED support to allow KVM to run a nested guest with FRED enabled. Lei Wang (1): target/i386: Raise the highest index value used for any VMCS encoding Xin Li (Intel) (2): target/i386: Delete duplicated macro definition CR4_FRED_MASK target/i386: Add VMX control

[PATCH v1 3/3] target/i386: Raise the highest index value used for any VMCS encoding

the VMCS field encoding of Secondary VM-exit controls, 0x44, is larger than any existing index value, raise the highest index value used for any VMCS encoding to 0x44. Co-developed-by: Xin Li Signed-off-by: Xin Li Signed-off-by: Lei Wang Signed-off-by: Xin Li (Intel) --- target/i386/cpu.h

[PATCH v1 1/3] target/i386: Delete duplicated macro definition CR4_FRED_MASK

Macro CR4_FRED_MASK is defined twice, delete one. Signed-off-by: Xin Li (Intel) --- target/i386/cpu.h | 6 -- 1 file changed, 6 deletions(-) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index c6cc035df3..118ef9cb68 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -267,12

[PATCH v1 2/3] target/i386: Add VMX control bits for nested FRED support

Add definitions of 1) VM-exit activate secondary controls bit 2) VM-entry load FRED bit which are required to enable nested FRED. Reviewed-by: Zhao Liu Signed-off-by: Xin Li (Intel) --- target/i386/cpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/i386

[PATCH v1 1/1] target/i386: Add VMX entry load FRED control name to VMX feature words

As VMX entry load FRED control is required to enable FRED in nested VMX, add it to VMX feature words. Signed-off-by: Xin Li (Intel) --- target/i386/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index c05765eeaf..84a09c19cf 100644

[PATCH v1 1/1] target/i386: Delete a duplicated macro definition CR4_FRED_MASK

Macro CR4_FRED_MASK is defined twice due to a merge incident, delete one. Signed-off-by: Xin Li (Intel) --- target/i386/cpu.h | 6 -- 1 file changed, 6 deletions(-) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 29daf37048..b73685a745 100644 --- a/target/i386/cpu.h +++ b/target