The patch adds a new member get_idt() to x86_emulate_ops.
It also adds a function to get the idt in order to be used by the emulator.
This is needed for real mode interrupt injection and the emulation of int
instructions.
Signed-off-by: Mohammed Gamal <m.gamal...@gmail.com>
---
arch/x86/include/asm/kvm_emulate.h | 1 +
arch/x86/kvm/x86.c | 6 ++++++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h
b/arch/x86/include/asm/kvm_emulate.h
index cbebf1d..f22e5da 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -139,6 +139,7 @@ struct x86_emulate_ops {
void (*set_segment_selector)(u16 sel, int seg, struct kvm_vcpu *vcpu);
unsigned long (*get_cached_segment_base)(int seg, struct kvm_vcpu
*vcpu);
void (*get_gdt)(struct desc_ptr *dt, struct kvm_vcpu *vcpu);
+ void (*get_idt)(struct desc_ptr *dt, struct kvm_vcpu *vcpu);
ulong (*get_cr)(int cr, struct kvm_vcpu *vcpu);
int (*set_cr)(int cr, ulong val, struct kvm_vcpu *vcpu);
int (*cpl)(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e7e3b50..416aa0e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3790,6 +3790,11 @@ static void emulator_get_gdt(struct desc_ptr *dt, struct
kvm_vcpu *vcpu)
kvm_x86_ops->get_gdt(vcpu, dt);
}
+static void emulator_get_idt(struct desc_ptr *dt, struct kvm_vcpu *vcpu)
+{
+ kvm_x86_ops->get_idt(vcpu, dt);
+}
+
static unsigned long emulator_get_cached_segment_base(int seg,
struct kvm_vcpu *vcpu)
{
@@ -3883,6 +3888,7 @@ static struct x86_emulate_ops emulate_ops = {
.set_segment_selector = emulator_set_segment_selector,
.get_cached_segment_base = emulator_get_cached_segment_base,
.get_gdt = emulator_get_gdt,
+ .get_idt = emulator_get_idt,
.get_cr = emulator_get_cr,
.set_cr = emulator_set_cr,
.cpl = emulator_get_cpl,
--
1.7.0.4
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