On Mon, Jul 06, 2015 at 10:17:33AM +0800, [email protected] wrote:
> From: Shannon Zhao <[email protected]>
> 
> We are about to trap and emulate acccesses to each PMU register
> individually. This adds the context offsets for the AArch64 PMU
> registers and their AArch32 counterparts.
> 
> Signed-off-by: Shannon Zhao <[email protected]>
> ---
>  arch/arm64/include/asm/kvm_asm.h | 59 
> +++++++++++++++++++++++++++++++++++-----
>  1 file changed, 52 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/kvm_asm.h 
> b/arch/arm64/include/asm/kvm_asm.h
> index 3c5fe68..21b5d3b 100644
> --- a/arch/arm64/include/asm/kvm_asm.h
> +++ b/arch/arm64/include/asm/kvm_asm.h
> @@ -56,14 +56,36 @@
>  #define DBGWVR15_EL1 86
>  #define MDCCINT_EL1  87      /* Monitor Debug Comms Channel Interrupt Enable 
> Reg */
>  
> +/* Performance Monitors Registers */
> +#define PMCR_EL0     88      /* Control Register */
> +#define PMOVSSET_EL0 89      /* Overflow Flag Status Set Register */
> +#define PMOVSCLR_EL0 90      /* Overflow Flag Status Clear Register */
> +#define PMCCNTR_EL0  91      /* Cycle Counter Register */
> +#define PMSELR_EL0   92      /* Event Counter Selection Register */
> +#define PMCEID0_EL0  93      /* Common Event Identification Register 0 */
> +#define PMCEID1_EL0  94      /* Common Event Identification Register 1 */
> +#define PMEVCNTR0_EL0        95      /* Event Counter Register (0-30) */

why do we need these when we trap-and-emulate and we have the kvm_pmc
structs?  Is that because the kvm_pmc structs are only used when we
actually have an active counter running and registered with perf?

> +#define PMEVTYPER0_EL0       96      /* Event Type Register (0-30) */
> +#define PMEVCNTR30_EL0       155
> +#define PMEVTYPER30_EL0      156
> +#define PMXEVCNTR_EL0        157     /* Selected Event Count Register */
> +#define PMXEVTYPER_EL0       158     /* Selected Event Type Register */
> +#define PMCNTENSET_EL0       159     /* Count Enable Set Register */
> +#define PMCNTENCLR_EL0       160     /* Count Enable Clear Register */
> +#define PMINTENSET_EL1       161     /* Interrupt Enable Set Register */
> +#define PMINTENCLR_EL1       162     /* Interrupt Enable Clear Register */
> +#define PMUSERENR_EL0        163     /* User Enable Register */
> +#define PMCCFILTR_EL0        164     /* Cycle Count Filter Register */
> +#define PMSWINC_EL0  165     /* Software Increment Register */
> +
>  /* 32bit specific registers. Keep them at the end of the range */
> -#define      DACR32_EL2      88      /* Domain Access Control Register */
> -#define      IFSR32_EL2      89      /* Instruction Fault Status Register */
> -#define      FPEXC32_EL2     90      /* Floating-Point Exception Control 
> Register */
> -#define      DBGVCR32_EL2    91      /* Debug Vector Catch Register */
> -#define      TEECR32_EL1     92      /* ThumbEE Configuration Register */
> -#define      TEEHBR32_EL1    93      /* ThumbEE Handler Base Register */
> -#define      NR_SYS_REGS     94
> +#define      DACR32_EL2      166     /* Domain Access Control Register */
> +#define      IFSR32_EL2      167     /* Instruction Fault Status Register */
> +#define      FPEXC32_EL2     168     /* Floating-Point Exception Control 
> Register */
> +#define      DBGVCR32_EL2    169     /* Debug Vector Catch Register */
> +#define      TEECR32_EL1     170     /* ThumbEE Configuration Register */
> +#define      TEEHBR32_EL1    171     /* ThumbEE Handler Base Register */
> +#define      NR_SYS_REGS     172
>  
>  /* 32bit mapping */
>  #define c0_MPIDR     (MPIDR_EL1 * 2) /* MultiProcessor ID Register */
> @@ -85,6 +107,24 @@
>  #define c6_IFAR              (c6_DFAR + 1)   /* Instruction Fault Address 
> Register */
>  #define c7_PAR               (PAR_EL1 * 2)   /* Physical Address Register */
>  #define c7_PAR_high  (c7_PAR + 1)    /* PAR top 32 bits */
> +
> +/* Performance Monitors*/
> +#define c9_PMCR              (PMCR_EL0 * 2)
> +#define c9_PMOVSSET  (PMOVSSET_EL0 * 2)
> +#define c9_PMOVSCLR  (PMOVSCLR_EL0 * 2)
> +#define c9_PMCCNTR   (PMCCNTR_EL0 * 2)
> +#define c9_PMSELR    (PMSELR_EL0 * 2)
> +#define c9_PMCEID0   (PMCEID0_EL0 * 2)
> +#define c9_PMCEID1   (PMCEID1_EL0 * 2)
> +#define c9_PMXEVCNTR (PMXEVCNTR_EL0 * 2)
> +#define c9_PMXEVTYPER        (PMXEVTYPER_EL0 * 2)
> +#define c9_PMCNTENSET        (PMCNTENSET_EL0 * 2)
> +#define c9_PMCNTENCLR        (PMCNTENCLR_EL0 * 2)
> +#define c9_PMINTENSET        (PMINTENSET_EL1 * 2)
> +#define c9_PMINTENCLR        (PMINTENCLR_EL1 * 2)
> +#define c9_PMUSERENR (PMUSERENR_EL0 * 2)
> +#define c9_PMSWINC   (PMSWINC_EL0 * 2)
> +
>  #define c10_PRRR     (MAIR_EL1 * 2)  /* Primary Region Remap Register */
>  #define c10_NMRR     (c10_PRRR + 1)  /* Normal Memory Remap Register */
>  #define c12_VBAR     (VBAR_EL1 * 2)  /* Vector Base Address Register */
> @@ -96,6 +136,11 @@
>  #define c10_AMAIR1   (c10_AMAIR0 + 1)/* Aux Memory Attr Indirection Reg */
>  #define c14_CNTKCTL  (CNTKCTL_EL1 * 2) /* Timer Control Register (PL1) */
>  
> +/* Performance Monitors*/
> +#define c14_PMEVCNTR0  (PMEVCNTR0_EL0 * 2)
> +#define c14_PMEVTYPR0  (PMEVTYPER0_EL0 * 2)
> +#define c14_PMCCFILTR  (PMCCFILTR_EL0 * 2)
> +
>  #define cp14_DBGDSCRext      (MDSCR_EL1 * 2)
>  #define cp14_DBGBCR0 (DBGBCR0_EL1 * 2)
>  #define cp14_DBGBVR0 (DBGBVR0_EL1 * 2)
> -- 
> 2.1.0
> 
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