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[Qemu-devel] [PATCH] ARM64: support access to more performance registers
From: |
Chengyu Song |
Subject: |
[Qemu-devel] [PATCH] ARM64: support access to more performance registers in AA64 mode |
Date: |
Wed, 3 Dec 2014 02:12:18 -0500 |
In AA64 mode, certain system registers are access through MSR/MRS
instructions instead of MCR/MRC. This patch added more such registers:
/* ARMv8 manual, D8.4.10 */
PMINTENCLR_EL1
/* ARMv8 manual, D8.4.11 */
PMINTENSET_EL1
/* ARMv8 manual, D8.4.12 */
PMOVSCLR_EL0
/* ARMv8 manual, D8.4.14 */
PMSELR_EL0
/* ARMv8 manual, D8.4.15 */
PMSWINC_EL0
/* ARMv8 manual, D8.4.16 */
PMUSERENR_EL0
/* ARMv8 manual, D8.4.17 */
PMXEVCNTR_EL0
/* ARMv8 manual, D8.4.18 */
PMXEVTYPER_EL0
Signed-off-by: Chengyu Song <address@hidden>
---
target-arm/helper.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index b74d348..43b5b06 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -843,15 +843,28 @@ static const ARMCPRegInfo v7_cp_reginfo[] = {
.accessfn = pmreg_access,
.writefn = pmovsr_write,
.raw_writefn = raw_write },
+ { .name = "PMOVSCLR_EL0", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 12, .opc1 = 3, .opc2 = 3,
+ .access = PL0_RW, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr),
+ .accessfn = pmreg_access,
+ .writefn = pmovsr_write,
+ .raw_writefn = raw_write },
/* Unimplemented so WI. */
{ .name = "PMSWINC", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 4,
.access = PL0_W, .accessfn = pmreg_access, .type = ARM_CP_NOP },
+ { .name = "PMSWINC_EL0", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 12, .opc1 = 3, .opc2 = 4,
+ .access = PL0_W, .accessfn = pmreg_access, .type = ARM_CP_NOP },
/* Since we don't implement any events, writing to PMSELR is UNPREDICTABLE.
* We choose to RAZ/WI.
*/
{ .name = "PMSELR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 5,
.access = PL0_RW, .type = ARM_CP_CONST, .resetvalue = 0,
.accessfn = pmreg_access },
+ { .name = "PMSELR_EL0", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 12, .opc1 = 3, .opc2 = 5,
+ .access = PL0_RW, .type = ARM_CP_CONST, .resetvalue = 0,
+ .accessfn = pmreg_access },
#ifndef CONFIG_USER_ONLY
{ .name = "PMCCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 0,
.access = PL0_RW, .resetvalue = 0, .type = ARM_CP_IO,
@@ -875,24 +888,51 @@ static const ARMCPRegInfo v7_cp_reginfo[] = {
.fieldoffset = offsetof(CPUARMState, cp15.c9_pmxevtyper),
.accessfn = pmreg_access, .writefn = pmxevtyper_write,
.raw_writefn = raw_write },
+ { .name = "PMXEVTYPER_EL0", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 13, .opc1 = 3, .opc2 = 1,
+ .access = PL0_RW,
+ .fieldoffset = offsetof(CPUARMState, cp15.c9_pmxevtyper),
+ .accessfn = pmreg_access, .writefn = pmxevtyper_write,
+ .raw_writefn = raw_write },
/* Unimplemented, RAZ/WI. */
{ .name = "PMXEVCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 2,
.access = PL0_RW, .type = ARM_CP_CONST, .resetvalue = 0,
.accessfn = pmreg_access },
+ { .name = "PMXEVCNTR_EL0", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 13, .opc1 = 3, .opc2 = 2,
+ .access = PL0_RW, .type = ARM_CP_CONST, .resetvalue = 0,
+ .accessfn = pmreg_access },
{ .name = "PMUSERENR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 0,
.access = PL0_R | PL1_RW,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pmuserenr),
.resetvalue = 0,
.writefn = pmuserenr_write, .raw_writefn = raw_write },
+ { .name = "PMUSERENR_EL0", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 14, .opc1 = 3, .opc2 = 0,
+ .access = PL0_R | PL1_RW,
+ .fieldoffset = offsetof(CPUARMState, cp15.c9_pmuserenr),
+ .resetvalue = 0,
+ .writefn = pmuserenr_write, .raw_writefn = raw_write },
{ .name = "PMINTENSET", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 =
1,
.access = PL1_RW,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
.resetvalue = 0,
.writefn = pmintenset_write, .raw_writefn = raw_write },
+ { .name = "PMINTENSET_EL1", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 1,
+ .access = PL1_RW,
+ .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
+ .resetvalue = 0,
+ .writefn = pmintenset_write, .raw_writefn = raw_write },
{ .name = "PMINTENCLR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 =
2,
.access = PL1_RW, .type = ARM_CP_NO_MIGRATE,
.fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
.resetvalue = 0, .writefn = pmintenclr_write, },
+ { .name = "PMINTENCLR_EL1", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 2,
+ .access = PL1_RW, .type = ARM_CP_NO_MIGRATE,
+ .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten),
+ .resetvalue = 0, .writefn = pmintenclr_write, },
{ .name = "VBAR", .state = ARM_CP_STATE_BOTH,
.opc0 = 3, .crn = 12, .crm = 0, .opc1 = 0, .opc2 = 0,
.access = PL1_RW, .writefn = vbar_write,
--
2.1.0
- [Qemu-devel] [PATCH] ARM64: support access to more performance registers in AA64 mode,
Chengyu Song <=