[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [RFC PATCH V3 03/11] x86/Hyper-V: Add new hvcall guest address host visibility support
Hi Borislav: Thanks for your review. On 5/31/2021 2:25 AM, Borislav Petkov wrote: On Sun, May 30, 2021 at 11:06:20AM -0400, Tianyu Lan wrote:diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c index 156cd235659f..a82975600107 100644 --- a/arch/x86/mm/pat/set_memory.c +++ b/arch/x86/mm/pat/set_memory.c @@ -29,6 +29,8 @@ #include <asm/proto.h> #include <asm/memtype.h> #include <asm/set_memory.h> +#include <asm/hyperv-tlfs.h> +#include <asm/mshyperv.h>#include "../mm_internal.h" @@ -1986,8 +1988,14 @@ static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc)int ret;/* Nothing to do if memory encryption is not active */- if (!mem_encrypt_active()) + if (hv_is_isolation_supported()) { + return hv_set_mem_host_visibility((void *)addr, + numpages * HV_HYP_PAGE_SIZE, + enc ? VMBUS_PAGE_NOT_VISIBLE + : VMBUS_PAGE_VISIBLE_READ_WRITE);Put all this gunk in a hv-specific function somewhere in hv-land which you only call from here. This way you probably won't even need to export hv_set_mem_host_visibility() and so on... Good idea. Will update. Thanks.
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