linux-kernel - [PATCH RFC 2/7] Revert "x86: do not re-randomize RNG seed on snapshot load"

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Date:   Wed, 8 Feb 2023 16:12:31 -0500
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     qemu-devel@...gnu.org, "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Dov Murik <dovmurik@...ux.ibm.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Daniel P . Berrangé <berrange@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Richard Henderson <richard.henderson@...aro.org>,
        "H . Peter Anvin" <hpa@...or.com>,
        Philippe Mathieu-Daudé <philmd@...aro.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Eric Biggers <ebiggers@...nel.org>,
        Eduardo Habkost <eduardo@...kost.net>,
        Marcel Apfelbaum <marcel.apfelbaum@...il.com>
Subject: [PATCH RFC 2/7] Revert "x86: do not re-randomize RNG seed on
 snapshot load"

This reverts commit 14b29fea742034186403914b4d013d0e83f19e78.

Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
Fixes: 14b29fea74 ("x86: do not re-randomize RNG seed on snapshot load")
---
 hw/i386/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index 78cc131926..7984f65352 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -1115,7 +1115,7 @@ void x86_load_linux(X86MachineState *x86ms,
         setup_data->type = cpu_to_le32(SETUP_RNG_SEED);
         setup_data->len = cpu_to_le32(RNG_SEED_LENGTH);
         qemu_guest_getrandom_nofail(setup_data->data, RNG_SEED_LENGTH);
-        qemu_register_reset_nosnapshotload(reset_rng_seed, setup_data);
+        qemu_register_reset(reset_rng_seed, setup_data);
         fw_cfg_add_bytes_callback(fw_cfg, FW_CFG_KERNEL_DATA, reset_rng_seed, NULL,
                                   setup_data, kernel, kernel_size, true);
     } else {
-- 
MST