This patch adds vcpu fields to configure hcptr trap register which is also used
to determine if fp/simd registers are dirty. Adds a field to save host FPEXC,
and offsets associated offsets.
Signed-off-by: Mario Smarduch <m.smarduch@xxxxxxxxxxx>
---
arch/arm/include/asm/kvm_host.h | 6 ++++++
arch/arm/kernel/asm-offsets.c | 2 ++
2 files changed, 8 insertions(+)
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 3df1e97..09bb1f2 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -104,6 +104,12 @@ struct kvm_vcpu_arch {
/* HYP trapping configuration */
u32 hcr;
+ /* HYP Co-processor fp/simd and trace trapping configuration */
+ u32 hcptr;
+
+ /* Save host FPEXC register to later restore on vcpu put */
+ u32 host_fpexc;
+
/* Interrupt related fields */
u32 irq_lines; /* IRQ and FIQ levels */
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index 871b826..28ebd4c 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -185,6 +185,8 @@ int main(void)
DEFINE(VCPU_PC, offsetof(struct kvm_vcpu, arch.regs.usr_regs.ARM_pc));
DEFINE(VCPU_CPSR, offsetof(struct kvm_vcpu, arch.regs.usr_regs.ARM_cpsr));
DEFINE(VCPU_HCR, offsetof(struct kvm_vcpu, arch.hcr));
+ DEFINE(VCPU_HCPTR, offsetof(struct kvm_vcpu, arch.hcptr));
+ DEFINE(VCPU_VFP_HOST_FPEXC, offsetof(struct kvm_vcpu, arch.host_fpexc));
DEFINE(VCPU_IRQ_LINES, offsetof(struct kvm_vcpu, arch.irq_lines));
DEFINE(VCPU_HSR, offsetof(struct kvm_vcpu, arch.fault.hsr));
DEFINE(VCPU_HxFAR, offsetof(struct kvm_vcpu, arch.fault.hxfar));
--
1.9.1
--
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