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dm: resize the vm_config buffer in 'vm_get_config()'

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resize vm_config buffer from 16KB to 32KB, as 16KB
 is not enough on EHL platform, which will result in
 crash when accessing this memory.

Tracked-On: #5649
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
This commit is contained in:
Yonghua Huang 2021-02-05 11:08:15 +08:00 committed by wenlingz
parent 1f686aeac8
commit 1cdf544d28
1 changed files with 2 additions and 1 deletions
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3
devicemodel/core/vmmapi.c
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@ -713,7 +713,7 @@ vm_irqfd(struct vmctx *ctx, struct acrn_irqfd *args)
int
vm_get_config(struct vmctx *ctx, struct acrn_vm_config *vm_cfg)
{
#define VM_CFG_BUFF_SIZE 0x4000
#define VM_CFG_BUFF_SIZE 0x8000
int i, err = 0;
uint8_t *configs_buff;
struct acrn_vm_config *pcfg;
@ -735,6 +735,7 @@ vm_get_config(struct vmctx *ctx, struct acrn_vm_config *vm_cfg)
pr_err("%s, failed: get platform info.\n", __func__);
goto exit;
}
assert(VM_CFG_BUFF_SIZE > (platform_info.max_vms * platform_info.vm_config_entry_size));
for (i = 0; i < platform_info.max_vms; i++) {
pcfg = (struct acrn_vm_config *)(configs_buff + (i * platform_info.vm_config_entry_size));