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X-Received-From: 2a00:1450:4864:20::341 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Wu , Sergio Lopez , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Peter Wu When the 'vga=3D' parameter is succeeded by another parameter, QEMU 4.2.0 would refuse to start with a rather cryptic message: $ qemu-system-x86_64 -kernel /boot/vmlinuz-linux -append 'vga=3D792 qui= et' qemu: can't parse 'vga' parameter: Invalid argument It was not clear whether this applied to the '-vga std' parameter or the '-append' one. Fix the parsing regression and clarify the error. Fixes: 133ef074bd ("hw/i386/pc: replace use of strtol with qemu_strtoui in = x86_load_linux()") Cc: Sergio Lopez Signed-off-by: Peter Wu Message-Id: <20191221162124.1159291-1-peter@lekensteyn.nl> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini --- hw/i386/x86.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/i386/x86.c b/hw/i386/x86.c index d8bb5c2..9b9a4d5 100644 --- a/hw/i386/x86.c +++ b/hw/i386/x86.c @@ -612,6 +612,7 @@ void x86_load_linux(X86MachineState *x86ms, vmode =3D strstr(kernel_cmdline, "vga=3D"); if (vmode) { unsigned int video_mode; + const char *end; int ret; /* skip "vga=3D" */ vmode +=3D 4; @@ -622,10 +623,9 @@ void x86_load_linux(X86MachineState *x86ms, } else if (!strncmp(vmode, "ask", 3)) { video_mode =3D 0xfffd; } else { - ret =3D qemu_strtoui(vmode, NULL, 0, &video_mode); - if (ret !=3D 0) { - fprintf(stderr, "qemu: can't parse 'vga' parameter: %s\n", - strerror(-ret)); + ret =3D qemu_strtoui(vmode, &end, 0, &video_mode); + if (ret !=3D 0 || (*end && *end !=3D ' ')) { + fprintf(stderr, "qemu: invalid 'vga=3D' kernel parameter.\= n"); exit(1); } } --=20 1.8.3.1