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Re: [Qemu-ppc] [RFC PATCH 19/26] ppc/xive: introduce a helper to map the
From: |
Cédric Le Goater |
Subject: |
Re: [Qemu-ppc] [RFC PATCH 19/26] ppc/xive: introduce a helper to map the XIVE memory regions |
Date: |
Tue, 25 Jul 2017 11:18:34 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 |
On 07/25/2017 04:54 AM, Alexey Kardashevskiy wrote:
> On 06/07/17 03:13, Cédric Le Goater wrote:
>> It will be used when the guest chooses the XIVE exploitation mode in
>> CAS.
>>
>> Signed-off-by: Cédric Le Goater <address@hidden>
>> ---
>> hw/intc/xive.c | 11 +++++++++++
>> include/hw/ppc/xive.h | 2 ++
>> 2 files changed, 13 insertions(+)
>>
>> diff --git a/hw/intc/xive.c b/hw/intc/xive.c
>> index cda1fa18e44d..895dd2b2f61b 100644
>> --- a/hw/intc/xive.c
>> +++ b/hw/intc/xive.c
>> @@ -915,3 +915,14 @@ bool xive_eq_for_target(XIVE *x, uint32_t target,
>> uint8_t priority,
>>
>> return true;
>> }
>> +
>> +void xive_mmio_map(XIVE *x)
>> +{
>> + /* ESBs */
>> + sysbus_mmio_map(SYS_BUS_DEVICE(x), 0, x->vc_base);
>> +
>> + /* Thread Management Interrupt Areas */
>> + /* TODO: Only map the OS TIMA for the moment. Mapping the whole
>> + * region needs some rework in the handlers */
>> + sysbus_mmio_map(SYS_BUS_DEVICE(x), 1, x->tm_base + (1 << x->tm_shift));
>> +}
>
>
> imho it makes more sense to squash such small patches (this one and 20/26,
> 21/26) into those which actually make use of the new helpers - easier to
> review, better for bisectability.
ok. I am also realizing we should unmap.
Thanks,
C.
>
>> diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
>> index 288116aeb8f4..560f6ab66f73 100644
>> --- a/include/hw/ppc/xive.h
>> +++ b/include/hw/ppc/xive.h
>> @@ -68,4 +68,6 @@ typedef struct sPAPRMachineState sPAPRMachineState;
>> void xive_spapr_init(sPAPRMachineState *spapr);
>> void xive_spapr_populate(XIVE *x, void *fdt);
>>
>> +void xive_mmio_map(XIVE *x);
>> +
>> #endif /* PPC_XIVE_H */
>>
>
>
[Qemu-ppc] [RFC PATCH 20/26] ppc/xive: introduce a helper to create XIVE interrupt source objects, Cédric Le Goater, 2017/07/05
[Qemu-ppc] [RFC PATCH 21/26] ppc/xive: introduce routines to allocate IRQ numbers, Cédric Le Goater, 2017/07/05
[Qemu-ppc] [RFC PATCH 22/26] ppc/xive: create an XIVE interrupt source to handle IPIs, Cédric Le Goater, 2017/07/05
[Qemu-ppc] [RFC PATCH 23/26] spapr: add a XIVE object to the sPAPR machine, Cédric Le Goater, 2017/07/05
[Qemu-ppc] [RFC PATCH 24/26] spapr: include the XIVE interrupt source for IPIs, Cédric Le Goater, 2017/07/05
[Qemu-ppc] [RFC PATCH 25/26] spapr: print the XIVE interrupt source for IPIs in the monitor, Cédric Le Goater, 2017/07/05
[Qemu-ppc] [RFC PATCH 26/26] spapr: force XIVE exploitation mode for POWER9 (HACK), Cédric Le Goater, 2017/07/05