From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jason Chen CJ Date: Fri, 31 Aug 2018 10:59:01 +0800 Subject: [PATCH] vhm: prepare future update for struct vm_set_memmap for back compatible, there is a uint32_t reserved field in struct vm_set_memmap, which will be removed in the future - finally change to struct set_memmap. this patch is preparing such change by change reserved field to prot , prot field to prot_2, and updating both prot & prot_2 during vm_set_memmap setting. Signed-off-by: Jason Chen CJ --- drivers/vhm/vhm_mm.c | 2 +- include/linux/vhm/acrn_hv_defs.h | 7 ++++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/vhm/vhm_mm.c b/drivers/vhm/vhm_mm.c index 75ccd3f09a4e..fb09ed2f994f 100644 --- a/drivers/vhm/vhm_mm.c +++ b/drivers/vhm/vhm_mm.c @@ -167,7 +167,7 @@ int _mem_set_memmap(unsigned long vmid, unsigned long guest_gpa, set_memmap.remote_gpa = guest_gpa; set_memmap.vm0_gpa = host_gpa; set_memmap.length = len; - set_memmap.prot = ((mem_type & MEM_TYPE_MASK) | + set_memmap.prot = set_memmap.prot_2 = ((mem_type & MEM_TYPE_MASK) | (mem_access_right & MEM_ACCESS_RIGHT_MASK)); /* hypercall to notify hv the guest EPT setting*/ diff --git a/include/linux/vhm/acrn_hv_defs.h b/include/linux/vhm/acrn_hv_defs.h index cd0147f732bc..d3af0970f7d2 100644 --- a/include/linux/vhm/acrn_hv_defs.h +++ b/include/linux/vhm/acrn_hv_defs.h @@ -135,7 +135,9 @@ struct vm_set_memmap { #define MAP_MMIO 1 #define MAP_UNMAP 2 uint32_t type; - uint32_t reserved; + + /* IN: mem attr */ + uint32_t prot; /* IN: beginning guest GPA to map */ uint64_t remote_gpa; @@ -146,8 +148,7 @@ struct vm_set_memmap { /* IN: length of the range */ uint64_t length; - /* IN: mem attr */ - uint32_t prot; + uint32_t prot_2; } __attribute__((aligned(8))); struct memory_map { -- https://clearlinux.org