From: Atish Patra __sev_platform_init_handle_init_ex_path() called rmp_mark_pages_firmware() with locked=false but while the parent function of init_ex_path already acquired the sev_cmd_mutex. In case of a rmpupdate failure for any page after the first, the cleanup path would invoke reclaim pages which would result in a deadlock in sev_do_cmd. Pass locked=true to honor the lock status of the parent function. Fixes: 7364a6fbca45 ("crypto: ccp: Handle non-volatile INIT_EX data when SNP is enabled") Reported-by: Chris Mason Assisted-by: Claude:claude-opus-4-6 Signed-off-by: Atish Patra --- drivers/crypto/ccp/sev-dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index d1e9e0ac63b6..3d4793e8e34b 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -1557,7 +1557,7 @@ static int __sev_platform_init_handle_init_ex_path(struct sev_device *sev) unsigned long npages; npages = 1UL << get_order(NV_LENGTH); - if (rmp_mark_pages_firmware(__pa(sev_init_ex_buffer), npages, false)) { + if (rmp_mark_pages_firmware(__pa(sev_init_ex_buffer), npages, true)) { dev_err(sev->dev, "SEV: INIT_EX NV memory page state change failed.\n"); return -ENOMEM; } -- 2.53.0-Meta