[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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