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hv: allocate ivshmem shared memory from E820 

ACRN boot fails when size of ivshmem device is
 configured to 512MB, this patch allocates this memory
 from E820 table instead of reserving in hypervisor.

Tracked-On: #8502
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Yonghua Huang 2023-08-11 07:00:56 +08:00 committed by acrnsi-robot
parent 791019edc5
commit 252ba0b047
1 changed files with 2 additions and 3 deletions
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5
hypervisor/dm/vpci/ivshmem.c
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@ -66,16 +66,15 @@ struct ivshmem_device {
struct ivshmem_shm_region *region;
};
/* IVSHMEM_SHM_SIZE is provided by offline tool */
static uint8_t ivshmem_base[IVSHMEM_SHM_SIZE] __aligned(PDE_SIZE);
static struct ivshmem_device ivshmem_dev[IVSHMEM_DEV_NUM];
static spinlock_t ivshmem_dev_lock = { .head = 0U, .tail = 0U, };
void init_ivshmem_shared_memory()
{
uint32_t i;
uint64_t addr = hva2hpa(&ivshmem_base);
uint64_t addr;
addr = e820_alloc_memory(roundup(IVSHMEM_SHM_SIZE, PDE_SIZE), MEM_SIZE_MAX);
for (i = 0U; i < ARRAY_SIZE(mem_regions); i++) {
mem_regions[i].hpa = addr;
addr += mem_regions[i].size;