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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?PG3MD3G8R3MGFvR9unUq6Va1L1iQIqQETT0NnX/ZOJp4+KSd/rfhHXzbasX2?= =?us-ascii?Q?yeIRfJ32Re5K70QtNZgxJlcfylrRCAW35dYgqMwvhY0if3KeRjQj40i9Upwx?= =?us-ascii?Q?tHP4uBlUmWd1tdXbXEwGCbrrUohrtD92ELPlk2F3ZGqxAqexzboe/mlb8sxv?= =?us-ascii?Q?83WARkrbpDn7BX1OGDneAX77zUn3Q46fexsZDGpvkB2W5sL/wK/4pM8cC/df?= =?us-ascii?Q?Sn8mENjrbBomkyJDPNavZNME/yNweU9Ub0qbLbcgih236mjAbJK7SYWCJf0h?= =?us-ascii?Q?TNxQUqJbhkB+I+NCE3+IkRd8mnlt5Zu1GE441F3whi6jiMt8pmGF4pGsrX82?= =?us-ascii?Q?g6rac2t0lpUn3Q7dROhdMQMMmGvMRgBA5J3pzK5Atw2wxC0FcVL1kFjygw+J?= =?us-ascii?Q?u64Q7mp4UcxpncVfzQpyG2sk8vtn34eCmZSbHeK4ukAe0GfP2bl6LPicHJrp?= =?us-ascii?Q?wwkTPCWvEMuG8K/1ukDnWlVeemIQt6foqG32ZXR2bQibh0u8ZfYYGdr1Leum?= =?us-ascii?Q?2d4aDLfotaszIB5kR9xeOagnEZcPhn2xYX6IlPKf6n0KCzjZ31BuNvUqAesT?= =?us-ascii?Q?4DoTNAsHP10PGLY+g1CgYS6yDVIxzMYWTosWu09TSuj/svS6EjoMneijczt4?= =?us-ascii?Q?9lCvWmV2prHGSez7JsdK11d+dd/8nP9GKFOyPVfjQZo5Ewcak0H7LYEN1KXa?= =?us-ascii?Q?somk8yWI8/p3mDVO1n4O9JKbEnGWZXdQEqqpgsJPOfkGrBGZR1FdvyygXoDz?= =?us-ascii?Q?IXtBC1RmovpZHSadjOCzT0JcJ+a3ktnEcIUNZM4+itlIGxUmI6fwhS4ShFsE?= =?us-ascii?Q?CDy5Zytx3FaWLszj4pWw+Fxw3t0+89tTpBEmSrRokvK8G9hgQoK2at9pGgHG?= =?us-ascii?Q?B46gWN3LKsjv+XaMFN8+BPnsOg+yF8zLES09KGrpj5tV87yOQt8+KiHhNcA+?= =?us-ascii?Q?kUUw/fkzaoueVCpjPgLKcx24UuB40jUo9dSVLVRU96FLPC6rxgTvTtJD6Wx9?= =?us-ascii?Q?SwR1BJ3qzeQ9NpSgFYOh4zpNi6/TF9RumV2+YDjcru2DqAMitkVxYa5bMEBV?= =?us-ascii?Q?IK9C3Ze4CCNfuEMka+CPe6KKw/g9z1ZEF3MfxLzLhznlc2BAkeXe0ztAf1aK?= =?us-ascii?Q?a2EKhTeJ+uod9p2YMowHRhtFUK5NhH7aLUdhgu9zAJbJl3CjF2rGjo0nP0R5?= =?us-ascii?Q?BC6DsCHrXp+UN+pbK1/WAxtENUjfdiETHQhXOTXsF1h/tuiqXg+um8ZEkNJb?= =?us-ascii?Q?XHz/AngM2UR6eEwpbJb8OElgu/KXcf7+8N3gtyQjVFfczfPo9KrtcFc3N51K?= =?us-ascii?Q?XgBWEK8GliyxtYcGupTeg5xcsBio5aWPOgUvF/tdGAaJhLn5/xqH7fs+G+E/?= =?us-ascii?Q?OxZSBeOberPL6yMSh8yhmNkeeDCeBTevLwAU37ME8OYj0kuwkXX9HN2IxGwV?= =?us-ascii?Q?7h6Xe9fZTNcmPGtlU/3B/KbKM7HGZ9dvC2+sprV6k72Jb9euP4ShtnnYlA0c?= =?us-ascii?Q?DjG/I9tz+LCeMUZDrB+KfNRHOlmtIkZwGcJ6DpW8BbjqRjpI+GMe1cgGqmCS?= =?us-ascii?Q?KP172Bk1AYtpnAObIAzI2UiZcBiMtxKpUic6/yiZ?= X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9f4319e7-e54d-48a1-27fe-08dac802513c X-MS-Exchange-CrossTenant-AuthSource: DM6PR21MB1370.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Nov 2022 18:42:30.6451 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: iKLxOtXT+tO7L9c87+7uTujAbThWxkMQ2C7cIsfihItD5aF6+j8DboEr/Q1zQeN+QmUW++gFN0dxkV1PyvVXGw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR21MB3130 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In preparation for a subsequent patch, update vmap_pfn() calls to explicitly request that the mapping be for decrypted access to the memory. There's no change in functionality since the PFNs passed to vmap_pfn() are above the shared_gpa_boundary, implicitly producing a decrypted mapping. But explicitly requesting decrypted allows the code to work before and after a subsequent patch that will cause vmap_pfn() to mask the PFNs to being below the shared_gpa_boundary. While another subsesquent patch removes the vmap_pfn() calls entirely, this temporary tweak avoids the need for a large patch that makes all the changes at once. Signed-off-by: Michael Kelley Reviewed-by: Tianyu Lan --- arch/x86/hyperv/ivm.c | 2 +- drivers/hv/ring_buffer.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/hyperv/ivm.c b/arch/x86/hyperv/ivm.c index f33c67e..e8be4c2 100644 --- a/arch/x86/hyperv/ivm.c +++ b/arch/x86/hyperv/ivm.c @@ -343,7 +343,7 @@ void *hv_map_memory(void *addr, unsigned long size) pfns[i] = vmalloc_to_pfn(addr + i * PAGE_SIZE) + (ms_hyperv.shared_gpa_boundary >> PAGE_SHIFT); - vaddr = vmap_pfn(pfns, size / PAGE_SIZE, PAGE_KERNEL_IO); + vaddr = vmap_pfn(pfns, size / PAGE_SIZE, pgprot_decrypted(PAGE_KERNEL_NOENC)); kfree(pfns); return vaddr; diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c index 59a4aa8..b4a91b1 100644 --- a/drivers/hv/ring_buffer.c +++ b/drivers/hv/ring_buffer.c @@ -211,7 +211,7 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info, ring_info->ring_buffer = (struct hv_ring_buffer *) vmap_pfn(pfns_wraparound, page_cnt * 2 - 1, - PAGE_KERNEL); + pgprot_decrypted(PAGE_KERNEL_NOENC)); kfree(pfns_wraparound); if (!ring_info->ring_buffer) -- 1.8.3.1