List all system instructions to emulate. This patch only introduces the
definitions, emulation handlers will be added in subsequent patches.
Signed-off-by: Jintack Lim <jintack.lim@xxxxxxxxxx>
---
arch/arm64/include/asm/sysreg.h | 38 ++++++++++++++++++++++++++++++++++++++
arch/arm64/kvm/sys_regs.c | 26 ++++++++++++++++++++++++++
2 files changed, 64 insertions(+)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index a051d42..53df733 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -367,6 +367,44 @@
#define SYS_SP_EL2 sys_reg(3, 6, 4, 1, 0)
+/* AT instructions */
+#define AT_Op0 1
+#define AT_CRn 7
+
+#define AT_S1E1R sys_insn(AT_Op0, 0, AT_CRn, 8, 0)
+#define AT_S1E1W sys_insn(AT_Op0, 0, AT_CRn, 8, 1)
+#define AT_S1E0R sys_insn(AT_Op0, 0, AT_CRn, 8, 2)
+#define AT_S1E0W sys_insn(AT_Op0, 0, AT_CRn, 8, 3)
+#define AT_S1E1RP sys_insn(AT_Op0, 0, AT_CRn, 9, 0)
+#define AT_S1E1WP sys_insn(AT_Op0, 0, AT_CRn, 9, 1)
+#define AT_S1E2R sys_insn(AT_Op0, 4, AT_CRn, 8, 0)
+#define AT_S1E2W sys_insn(AT_Op0, 4, AT_CRn, 8, 1)
+#define AT_S12E1R sys_insn(AT_Op0, 4, AT_CRn, 8, 4)
+#define AT_S12E1W sys_insn(AT_Op0, 4, AT_CRn, 8, 5)
+#define AT_S12E0R sys_insn(AT_Op0, 4, AT_CRn, 8, 6)
+#define AT_S12E0W sys_insn(AT_Op0, 4, AT_CRn, 8, 7)
+
+/* TLBI instructions */
+#define TLBI_Op0 1
+#define TLBI_Op1_EL2 4 /* Accessible from EL2 or higher */
+#define TLBI_CRn 8
+#define tlbi_insn_el2(CRm, Op2) sys_insn(TLBI_Op0, TLBI_Op1_EL2, TLBI_CRn, (CRm), (Op2))
+
+#define TLBI_IPAS2E1IS tlbi_insn_el2(0, 1)
+#define TLBI_IPAS2LE1IS tlbi_insn_el2(0, 5)
+#define TLBI_ALLE2IS tlbi_insn_el2(3, 0)
+#define TLBI_VAE2IS tlbi_insn_el2(3, 1)
+#define TLBI_ALLE1IS tlbi_insn_el2(3, 4)
+#define TLBI_VALE2IS tlbi_insn_el2(3, 5)
+#define TLBI_VMALLS12E1IS tlbi_insn_el2(3, 6)
+#define TLBI_IPAS2E1 tlbi_insn_el2(4, 1)
+#define TLBI_IPAS2LE1 tlbi_insn_el2(4, 5)
+#define TLBI_ALLE2 tlbi_insn_el2(7, 0)
+#define TLBI_VAE2 tlbi_insn_el2(7, 1)
+#define TLBI_ALLE1 tlbi_insn_el2(7, 4)
+#define TLBI_VALE2 tlbi_insn_el2(7, 5)
+#define TLBI_VMALLS12E1 tlbi_insn_el2(7, 6)
+
/* Common SCTLR_ELx flags. */
#define SCTLR_ELx_EE (1 << 25)
#define SCTLR_ELx_I (1 << 12)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 481bea64..8d04926 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1624,6 +1624,32 @@ static bool access_id_aa64mmfr0_el1(struct kvm_vcpu *v,
#define SYS_INSN_TO_DESC(insn, access_fn, forward_fn) \
{ SYS_DESC((insn)), (access_fn), NULL, 0, 0, NULL, NULL, (forward_fn) }
static struct sys_reg_desc sys_insn_descs[] = {
+ SYS_INSN_TO_DESC(AT_S1E1R, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S1E1W, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S1E0R, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S1E0W, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S1E1RP, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S1E1WP, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S1E2R, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S1E2W, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S12E1R, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S12E1W, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S12E0R, NULL, NULL),
+ SYS_INSN_TO_DESC(AT_S12E0W, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_IPAS2E1IS, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_IPAS2LE1IS, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_ALLE2IS, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_VAE2IS, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_ALLE1IS, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_VALE2IS, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_VMALLS12E1IS, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_IPAS2E1, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_IPAS2LE1, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_ALLE2, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_VAE2, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_ALLE1, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_VALE2, NULL, NULL),
+ SYS_INSN_TO_DESC(TLBI_VMALLS12E1, NULL, NULL),
};
#define reg_to_match_value(x) \
--
1.9.1
