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Re: [PATCH 2/8] linux-headers: Update for KVM_DEV_XIVE_GRP_SOURCE_INFO
From: |
Cédric Le Goater |
Subject: |
Re: [PATCH 2/8] linux-headers: Update for KVM_DEV_XIVE_GRP_SOURCE_INFO |
Date: |
Thu, 20 Aug 2020 08:49:29 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 8/20/20 2:58 AM, David Gibson wrote:
> On Wed, Aug 19, 2020 at 03:08:37PM +0200, Cédric Le Goater wrote:
>> To be sent with the linux-headers update when support is merged.
>
> Ah, so this isn't ready to go just yet.
No indeed. We should get the QEMU part correct first, and handle
safely the source characteristics of the host.
C.
>
>>
>> Signed-off-by: Cédric Le Goater <clg@kaod.org>
>> ---
>> linux-headers/asm-powerpc/kvm.h | 8 ++++++++
>> 1 file changed, 8 insertions(+)
>>
>> diff --git a/linux-headers/asm-powerpc/kvm.h
>> b/linux-headers/asm-powerpc/kvm.h
>> index 264e266a85bf..aeb8e8c4633b 100644
>> --- a/linux-headers/asm-powerpc/kvm.h
>> +++ b/linux-headers/asm-powerpc/kvm.h
>> @@ -690,6 +690,7 @@ struct kvm_ppc_cpu_char {
>> #define KVM_DEV_XIVE_GRP_SOURCE_CONFIG 3 /* 64-bit source
>> identifier */
>> #define KVM_DEV_XIVE_GRP_EQ_CONFIG 4 /* 64-bit EQ identifier */
>> #define KVM_DEV_XIVE_GRP_SOURCE_SYNC 5 /* 64-bit source
>> identifier */
>> +#define KVM_DEV_XIVE_GRP_SOURCE_INFO 6 /* 64-bit source
>> identifier */
>>
>> /* Layout of 64-bit XIVE source attribute values */
>> #define KVM_XIVE_LEVEL_SENSITIVE (1ULL << 0)
>> @@ -721,6 +722,13 @@ struct kvm_ppc_xive_eq {
>> __u8 pad[40];
>> };
>>
>> +#define KVM_XIVE_SOURCE_FLAG_STORE_EOI 0x00000001
>> +
>> +/* Layout of source characteristics (8 bytes) */
>> +struct kvm_ppc_xive_src {
>> + __u64 flags;
>> +};
>> +
>> #define KVM_XIVE_EQ_ALWAYS_NOTIFY 0x00000001
>>
>> #define KVM_XIVE_TIMA_PAGE_OFFSET 0
>
- [PATCH 0/8] spapr/xive: Activate StoreEOI in P10 compat guests, Cédric Le Goater, 2020/08/19
- [PATCH 1/8] spapr/xive: Add a 'hv-prio' property to represent the KVM escalation priority, Cédric Le Goater, 2020/08/19
- [PATCH 2/8] linux-headers: Update for KVM_DEV_XIVE_GRP_SOURCE_INFO, Cédric Le Goater, 2020/08/19
- [PATCH 3/8] spapr/xive: Query the characteristics of a source in KVM, Cédric Le Goater, 2020/08/19
- [PATCH 4/8] spapr/xive: Activate StoreEOI for POWER10 only, Cédric Le Goater, 2020/08/19
- [PATCH 6/8] spapr/xive: Activate StoreEOI by default, Cédric Le Goater, 2020/08/19
- [PATCH 5/8] spapr/xive: Enforce the load-after-store ordering, Cédric Le Goater, 2020/08/19
- [PATCH 7/8] spapr/xive: Use the xics flag to check for XIVE-only IRQ backends, Cédric Le Goater, 2020/08/19
- [PATCH 8/8] spapr/xive: Introduce a XIVE StoreEOI IRQ backend, Cédric Le Goater, 2020/08/19