[PATCH v2 07/13] KVM: arm64: Add config register bit definitions
Fuad Tabba
tabba at google.com
Tue Jun 15 06:39:44 PDT 2021
Add hardware configuration register bit definitions for HCR_EL2
and MDCR_EL2. Future patches toggle these hyp configuration
register bits to trap on certain accesses.
No functional change intended.
Signed-off-by: Fuad Tabba <tabba at google.com>
---
arch/arm64/include/asm/kvm_arm.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index bee1ba6773fb..a78090071f1f 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -12,7 +12,11 @@
#include <asm/types.h>
/* Hyp Configuration Register (HCR) bits */
+#define HCR_TID5 (UL(1) << 58)
+#define HCR_DCT (UL(1) << 57)
#define HCR_ATA (UL(1) << 56)
+#define HCR_AMVOFFEN (UL(1) << 51)
+#define HCR_FIEN (UL(1) << 47)
#define HCR_FWB (UL(1) << 46)
#define HCR_API (UL(1) << 41)
#define HCR_APK (UL(1) << 40)
@@ -55,6 +59,7 @@
#define HCR_PTW (UL(1) << 2)
#define HCR_SWIO (UL(1) << 1)
#define HCR_VM (UL(1) << 0)
+#define HCR_RES0 ((UL(1) << 48) | (UL(1) << 39))
/*
* The bits we set in HCR:
@@ -276,11 +281,21 @@
#define CPTR_EL2_TZ (1 << 8)
#define CPTR_NVHE_EL2_RES1 0x000032ff /* known RES1 bits in CPTR_EL2 (nVHE) */
#define CPTR_EL2_DEFAULT CPTR_NVHE_EL2_RES1
+#define CPTR_NVHE_EL2_RES0 (GENMASK_ULL(63, 32) | \
+ GENMASK_ULL(29, 21) | \
+ GENMASK_ULL(19, 14) | \
+ (UL(1) << 11))
/* Hyp Debug Configuration Register bits */
#define MDCR_EL2_E2TB_MASK (UL(0x3))
#define MDCR_EL2_E2TB_SHIFT (UL(24))
+#define MDCR_EL2_HPMFZS (UL(1) << 36)
+#define MDCR_EL2_HPMFZO (UL(1) << 29)
+#define MDCR_EL2_MTPME (UL(1) << 28)
+#define MDCR_EL2_TDCC (UL(1) << 27)
+#define MDCR_EL2_HCCD (UL(1) << 23)
#define MDCR_EL2_TTRF (UL(1) << 19)
+#define MDCR_EL2_HPMD (UL(1) << 17)
#define MDCR_EL2_TPMS (UL(1) << 14)
#define MDCR_EL2_E2PB_MASK (UL(0x3))
#define MDCR_EL2_E2PB_SHIFT (UL(12))
@@ -292,6 +307,12 @@
#define MDCR_EL2_TPM (UL(1) << 6)
#define MDCR_EL2_TPMCR (UL(1) << 5)
#define MDCR_EL2_HPMN_MASK (UL(0x1F))
+#define MDCR_EL2_RES0 (GENMASK_ULL(63, 37) | \
+ GENMASK_ULL(35, 30) | \
+ GENMASK_ULL(25, 24) | \
+ GENMASK_ULL(22, 20) | \
+ (UL(1) << 18) | \
+ GENMASK_ULL(16, 15))
/* For compatibility with fault code shared with 32-bit */
#define FSC_FAULT ESR_ELx_FSC_FAULT
--
2.32.0.272.g935e593368-goog
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