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Re: [Qemu-devel] [PATCH v4 4/6] target-arm: Add the Hypervisor timer
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH v4 4/6] target-arm: Add the Hypervisor timer |
Date: |
Fri, 12 Jun 2015 18:00:15 +0100 |
On 5 June 2015 at 11:33, Edgar E. Iglesias <address@hidden> wrote:
> From: "Edgar E. Iglesias" <address@hidden>
>
> Signed-off-by: Edgar E. Iglesias <address@hidden>
> ---
> static const ARMCPRegInfo generic_timer_cp_reginfo[] = {
> /* Note that CNTFRQ is purely reads-as-written for the benefit
> * of software; writing it doesn't actually change the timer frequency.
> @@ -2648,6 +2683,18 @@ static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = {
> { .name = "CNTVOFF", .cp = 15, .opc1 = 4, .crm = 14,
> .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_CONST,
> .resetvalue = 0 },
> + { .name = "CNTHP_CTL_EL2", .state = ARM_CP_STATE_AA64,
> + .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 1,
> + .access = PL2_RW,
> + .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore, },
> + { .name = "CNTHP_CVAL_EL2", .state = ARM_CP_STATE_AA64,
> + .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 2,
> + .access = PL2_RW,
> + .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore, },
> + { .name = "CNTHP_TVAL_EL2", .state = ARM_CP_STATE_AA64,
> + .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 0,
> + .access = PL2_RW,
> + .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore, },
raz/wi should be implemented as ARM_CP_CONST...
Consider ordering these three defs CVAL, TVAL, CTL, so they're
in the natural order by opc2? (Ditto below.)
Can we have the AArch32 bindings too, please?
> REGINFO_SENTINEL
> };
>
> @@ -2774,6 +2821,23 @@ static const ARMCPRegInfo el2_cp_reginfo[] = {
> .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_ALIAS | ARM_CP_IO,
> .writefn = gt_cntvoff_write,
> .fieldoffset = offsetof(CPUARMState, cp15.cntvoff_el2) },
> + { .name = "CNTHP_CTL_EL2", .state = ARM_CP_STATE_AA64,
> + .type = ARM_CP_IO,
> + .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 1,
> + .access = PL2_RW,
> + .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].ctl),
> + .resetvalue = 0,
> + .writefn = gt_hyp_ctl_write, .raw_writefn = raw_write },
> + { .name = "CNTHP_CVAL_EL2", .state = ARM_CP_STATE_AA64,
> + .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 2,
> + .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].cval),
> + .type = ARM_CP_IO, .access = PL2_RW,
> + .writefn = gt_hyp_cval_write, .raw_writefn = raw_write },
> + { .name = "CNTHP_TVAL_EL2", .state = ARM_CP_STATE_AA64,
> + .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 0,
> + .type = ARM_CP_IO, .access = PL2_RW,
> + .resetfn = gt_hyp_cnt_reset,
> + .readfn = gt_hyp_tval_read, .writefn = gt_hyp_tval_write },
> #endif
> REGINFO_SENTINEL
> };
-- PMM
- [Qemu-devel] [PATCH v4 0/6] arm: Steps towards EL2 support round 3, Edgar E. Iglesias, 2015/06/05
- [Qemu-devel] [PATCH v4 1/6] target-arm: Add CNTVOFF_EL2, Edgar E. Iglesias, 2015/06/05
- [Qemu-devel] [PATCH v4 2/6] target-arm: Add CNTHCTL_EL2, Edgar E. Iglesias, 2015/06/05
- [Qemu-devel] [PATCH v4 3/6] target-arm: Pass timeridx as argument to various timer functions, Edgar E. Iglesias, 2015/06/05
- [Qemu-devel] [PATCH v4 4/6] target-arm: Add the Hypervisor timer, Edgar E. Iglesias, 2015/06/05
- Re: [Qemu-devel] [PATCH v4 4/6] target-arm: Add the Hypervisor timer,
Peter Maydell <=
- [Qemu-devel] [PATCH v4 5/6] hw/arm/virt: Replace magic IRQ constants with macros, Edgar E. Iglesias, 2015/06/05
- [Qemu-devel] [PATCH v4 6/6] hw/arm/virt: Connect the Hypervisor timer, Edgar E. Iglesias, 2015/06/05