Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 08:31:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

KVM: arm64: MDCR_EL2 is a 64-bit register

Browse Source 
Fix the places in KVM that treat MDCR_EL2 as a 32-bit register.
More recent features (e.g., FEAT_SPEv1p2) use bits above 31.

No functional change intended.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210817081134.2918285-4-tabba@google.com
This commit is contained in:
Fuad Tabba 2021-08-17 09:11:22 +01:00 committed by Marc Zyngier
parent e6bc555c96
commit d6c850dd6c
6 changed files with 15 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
arch/arm64/include/asm/kvm_arm.h
View File

@ -281,18 +281,18 @@
/* Hyp Debug Configuration Register bits */
#define MDCR_EL2_E2TB_MASK (UL(0x3))
#define MDCR_EL2_E2TB_SHIFT (UL(24))
#define MDCR_EL2_TTRF (1 << 19)
#define MDCR_EL2_TPMS (1 << 14)
#define MDCR_EL2_TTRF (UL(1) << 19)
#define MDCR_EL2_TPMS (UL(1) << 14)
#define MDCR_EL2_E2PB_MASK (UL(0x3))
#define MDCR_EL2_E2PB_SHIFT (UL(12))
#define MDCR_EL2_TDRA (1 << 11)
#define MDCR_EL2_TDOSA (1 << 10)
#define MDCR_EL2_TDA (1 << 9)
#define MDCR_EL2_TDE (1 << 8)
#define MDCR_EL2_HPME (1 << 7)
#define MDCR_EL2_TPM (1 << 6)
#define MDCR_EL2_TPMCR (1 << 5)
#define MDCR_EL2_HPMN_MASK (0x1F)
#define MDCR_EL2_TDRA (UL(1) << 11)
#define MDCR_EL2_TDOSA (UL(1) << 10)
#define MDCR_EL2_TDA (UL(1) << 9)
#define MDCR_EL2_TDE (UL(1) << 8)
#define MDCR_EL2_HPME (UL(1) << 7)
#define MDCR_EL2_TPM (UL(1) << 6)
#define MDCR_EL2_TPMCR (UL(1) << 5)
#define MDCR_EL2_HPMN_MASK (UL(0x1F))
/* For compatibility with fault code shared with 32-bit */
#define FSC_FAULT ESR_ELx_FSC_FAULT

2
arch/arm64/include/asm/kvm_asm.h
View File

@ -210,7 +210,7 @@ extern u64 __vgic_v3_read_vmcr(void);
extern void __vgic_v3_write_vmcr(u32 vmcr);
extern void __vgic_v3_init_lrs(void);
extern u32 __kvm_get_mdcr_el2(void);
extern u64 __kvm_get_mdcr_el2(void);
#define __KVM_EXTABLE(from, to) \
" .pushsection __kvm_ex_table, \"a\"\n" \

2
arch/arm64/include/asm/kvm_host.h
View File

@ -289,7 +289,7 @@ struct kvm_vcpu_arch {
/* HYP configuration */
u64 hcr_el2;
u32 mdcr_el2;
u64 mdcr_el2;
/* Exception Information */
struct kvm_vcpu_fault_info fault;

2
arch/arm64/kvm/debug.c
View File

@ -21,7 +21,7 @@
DBG_MDSCR_KDE | \
DBG_MDSCR_MDE)
static DEFINE_PER_CPU(u32, mdcr_el2);
static DEFINE_PER_CPU(u64, mdcr_el2);
/**
* save/restore_guest_debug_regs

2
arch/arm64/kvm/hyp/nvhe/debug-sr.c
View File

@ -109,7 +109,7 @@ void __debug_switch_to_host(struct kvm_vcpu *vcpu)
__debug_switch_to_host_common(vcpu);
}
u32 __kvm_get_mdcr_el2(void)
u64 __kvm_get_mdcr_el2(void)
{
return read_sysreg(mdcr_el2);
}

2
arch/arm64/kvm/hyp/vhe/debug-sr.c
View File

@ -20,7 +20,7 @@ void __debug_switch_to_host(struct kvm_vcpu *vcpu)
__debug_switch_to_host_common(vcpu);
}
u32 __kvm_get_mdcr_el2(void)
u64 __kvm_get_mdcr_el2(void)
{
return read_sysreg(mdcr_el2);
}