|
From: | Richard Henderson |
Subject: | Re: [Qemu-devel] [PATCH 02/26] target/s390x: make IPTE SMP aware |
Date: | Fri, 26 May 2017 06:53:16 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 |
On 05/25/2017 02:04 PM, Aurelien Jarno wrote:
/* XXX we exploit the fact that Linux passes the exact virtual address here - it's not obliged to! */ - tlb_flush_page(cs, page); + tlb_flush_page_all_cpus_synced(cs, page);/* XXX 31-bit hack */if (page & 0x80000000) { - tlb_flush_page(cs, page & ~0x80000000); + tlb_flush_page_all_cpus_synced(cs, page & ~0x80000000); } else { - tlb_flush_page(cs, page | 0x80000000); + tlb_flush_page_all_cpus_synced(cs, page | 0x80000000); }
Ideally we would, at the same time, implement the local-pte facility, which examines a bit in the M4 field to *not* do this. That said,
Reviewed-by: Richard Henderson <address@hidden> r~
[Prev in Thread] | Current Thread | [Next in Thread] |