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[Qemu-devel] [PATCH 5/9] mips/kvm: Support unsigned KVM registers
From: |
James Hogan |
Subject: |
[Qemu-devel] [PATCH 5/9] mips/kvm: Support unsigned KVM registers |
Date: |
Wed, 11 Mar 2015 15:22:47 +0000 |
Add KVM register access functions for the uint32_t type. This is
required for FP and MSA control registers, which are represented as
unsigned 32-bit integers.
Signed-off-by: James Hogan <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Cc: Leon Alrae <address@hidden>
Cc: Aurelien Jarno <address@hidden>
---
target-mips/kvm.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/target-mips/kvm.c b/target-mips/kvm.c
index b8813a2722a3..f4ee22f3e998 100644
--- a/target-mips/kvm.c
+++ b/target-mips/kvm.c
@@ -243,6 +243,18 @@ static inline int kvm_mips_put_one_reg(CPUState *cs,
uint64_t reg_id,
return kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, &cp0reg);
}
+static inline int kvm_mips_put_one_ureg(CPUState *cs, uint64_t reg_id,
+ uint32_t *addr)
+{
+ uint64_t val64 = *addr;
+ struct kvm_one_reg cp0reg = {
+ .id = reg_id,
+ .addr = (uintptr_t)&val64
+ };
+
+ return kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, &cp0reg);
+}
+
static inline int kvm_mips_put_one_ulreg(CPUState *cs, uint64_t reg_id,
target_ulong *addr)
{
@@ -283,6 +295,23 @@ static inline int kvm_mips_get_one_reg(CPUState *cs,
uint64_t reg_id,
return ret;
}
+static inline int kvm_mips_get_one_ureg(CPUState *cs, uint64_t reg_id,
+ uint32_t *addr)
+{
+ int ret;
+ uint64_t val64 = 0;
+ struct kvm_one_reg cp0reg = {
+ .id = reg_id,
+ .addr = (uintptr_t)&val64
+ };
+
+ ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, &cp0reg);
+ if (ret >= 0) {
+ *addr = val64;
+ }
+ return ret;
+}
+
static inline int kvm_mips_get_one_ulreg(CPUState *cs, uint64 reg_id,
target_ulong *addr)
{
--
2.0.5
- [Qemu-devel] [PATCH 0/9] mips/kvm: Support FPU & SIMD (MSA) in MIPS KVM guests, James Hogan, 2015/03/11
- [Qemu-devel] [PATCH 1/9] mips/kvm: Drop KVM_REG_MIPS_COUNT_* definitions, James Hogan, 2015/03/11
- [Qemu-devel] [PATCH 5/9] mips/kvm: Support unsigned KVM registers,
James Hogan <=
- [Qemu-devel] [PATCH 3/9] mips/kvm: Implement PRid CP0 register, James Hogan, 2015/03/11
- [Qemu-devel] [PATCH 9/9] mips/kvm: Support MSA in MIPS KVM guests, James Hogan, 2015/03/11
- [Qemu-devel] [PATCH 6/9] mips/kvm: Support signed 64-bit KVM registers, James Hogan, 2015/03/11
- [Qemu-devel] [PATCH 8/9] mips/kvm: Support FPU in MIPS KVM guests, James Hogan, 2015/03/11
- [Qemu-devel] [PATCH 2/9] mips/kvm: Remove a couple of noisy DPRINTFs, James Hogan, 2015/03/11
- [Qemu-devel] [PATCH 7/9] mips/kvm: Add FP & MSA register definitions, James Hogan, 2015/03/11