From 9ede2fde19eaf65c07c8bed3936e78dc0ed37412 Mon Sep 17 00:00:00 2001 From: aliguori Date: Thu, 15 Jan 2009 20:05:25 +0000 Subject: [PATCH] add virtio-console support (Christian Ehrhardt) This patch adds the virtio console to qemu. This console can be found after the serial and parallel outputs as another virtual console. In the -nographic case it is redirected to the null output by default. Signed-off-by: Christian Ehrhardt Signed-off-by: Anthony Liguori git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6315 c046a42c-6fe2-441c-8c8c-71466251a162 --- Makefile.target | 2 +- sysemu.h | 6 ++++++ vl.c | 26 ++++++++++++++++++++++++++ 3 files changed, 33 insertions(+), 1 deletion(-) diff --git a/Makefile.target b/Makefile.target index 58fe88f..a97edd7 100644 --- a/Makefile.target +++ b/Makefile.target @@ -554,7 +554,7 @@ ifndef CONFIG_USER_ONLY OBJS=vl.o osdep.o monitor.o pci.o loader.o isa_mmio.o machine.o # virtio has to be here due to weird dependency between PCI and virtio-net. # need to fix this properly -OBJS+=virtio.o virtio-blk.o virtio-balloon.o virtio-net.o +OBJS+=virtio.o virtio-blk.o virtio-balloon.o virtio-net.o virtio-console.o OBJS+=fw_cfg.o ifdef CONFIG_KVM OBJS+=kvm.o kvm-all.o diff --git a/sysemu.h b/sysemu.h index 47c1fea..b68c04c 100644 --- a/sysemu.h +++ b/sysemu.h @@ -158,6 +158,12 @@ extern CharDriverState *serial_hds[MAX_SERIAL_PORTS]; extern CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; +/* virtio consoles */ + +#define MAX_VIRTIO_CONSOLES 1 + +extern CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES]; + #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR) #ifdef NEED_CPU_H diff --git a/vl.c b/vl.c index e29072b..2379986 100644 --- a/vl.c +++ b/vl.c @@ -209,6 +209,7 @@ static int no_frame = 0; int no_quit = 0; CharDriverState *serial_hds[MAX_SERIAL_PORTS]; CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; +CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES]; #ifdef TARGET_I386 int win2k_install_hack = 0; #endif @@ -4502,6 +4503,8 @@ int main(int argc, char **argv, char **envp) int serial_device_index; const char *parallel_devices[MAX_PARALLEL_PORTS]; int parallel_device_index; + const char *virtio_consoles[MAX_VIRTIO_CONSOLES]; + int virtio_console_index; const char *loadvm = NULL; QEMUMachine *machine; const char *cpu_model; @@ -4575,6 +4578,11 @@ int main(int argc, char **argv, char **envp) parallel_devices[i] = NULL; parallel_device_index = 0; + virtio_consoles[0] = "vc:80Cx24C"; + for(i = 1; i < MAX_VIRTIO_CONSOLES; i++) + virtio_consoles[i] = NULL; + virtio_console_index = 0; + usb_devices_index = 0; nb_net_clients = 0; @@ -5170,6 +5178,8 @@ int main(int argc, char **argv, char **envp) parallel_devices[0] = "null"; if (strncmp(monitor_device, "vc", 2) == 0) monitor_device = "stdio"; + if (virtio_console_index == 0) + virtio_consoles[0] = "null"; } #ifndef _WIN32 @@ -5464,6 +5474,22 @@ int main(int argc, char **argv, char **envp) } } + for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { + const char *devname = virtio_consoles[i]; + if (devname && strcmp(devname, "none")) { + char label[32]; + snprintf(label, sizeof(label), "virtcon%d", i); + virtcon_hds[i] = qemu_chr_open(label, devname); + if (!virtcon_hds[i]) { + fprintf(stderr, "qemu: could not open virtio console '%s'\n", + devname); + exit(1); + } + if (strstart(devname, "vc", 0)) + qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i); + } + } + if (kvm_enabled()) { int ret; -- 2.7.4