search for: fw_cfg

Hi I am trying to run CoreOS (Container Linux) as a guest OS using KVM/QEMU. One of their suggestions is to pass config info into the VM using the "fw_cfg" option . When I try this I get the error "-fw_cfg invalid option". If I run the vm with the help option it does not list the fw_cfg option. However, according to the qemu documentation, see here <https://qemu.weilnetz.de/doc/qemu-doc.html#Debug_002fExpert-options>, they s...

On Wed, Jul 26, 2017 at 12:20 PM, Steve Rubie-Todd <steve at rubie-todd.com> wrote: > Hi > > I am trying to run CoreOS (Container Linux) as a guest OS using KVM/QEMU. > One of their suggestions is to pass config info into the VM using the > "fw_cfg" option . When I try this I get the error "-fw_cfg invalid option". > If I run the vm with the help option it does not list the fw_cfg option. > However, according to the qemu documentation, see here < > https://qemu.weilnetz.de/doc/qemu-doc.html#Debug_002fExpert-options&...

...e Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus for you to fetch changes up to dc32bb678e103afbcfa4d814489af0566307f528: vhost: add vsock compat ioctl (2018-03-20 03:17:42 +0200) ---------------------------------------------------------------- fw_cfg, vhost: features fixes This cleans up the qemu fw cfg device driver. On top of this, vmcore is dumped there on crash to help debugging witH kASLR enabled. Also included are some fixes in vhost. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> ------------------------------------------...

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 20b12f92d80433b9bd0d54b9712897501ac66fdd commit: f59055103f6930c771fc597c42a92cbe997a765d [22/28] fw_cfg: add a public uapi header config: i386-randconfig-i0-201806 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: git checkout f59055103f6930c771fc597c42a92cbe997a765d # save the attached .config to linux build tree make ARCH=i386 All errors (new ones pre...

...for my `libguestfs-test-tool` itself fails with: "Could not open option rom 'linuxboot_dma.bin': No such file or directory" How I went about: (1) Build QEMU with https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg05891.html -- Add optionrom compatible with fw_cfg DMA version Build QEMU with the above patch: $ w3m https://patchwork.ozlabs.org/patch/575578/mbox \ > add-optionrom-compatible-with-fw_cfg-DMA-version.patch $ git am -3 \ ~/add-optionrom-compatible-with-fw_cfg-DMA-version.patch # sudo dnf builddep qemu -...

...rs.centos.org on Monday, March 12th 2018. Here's the ChangeLog: * Thu Mar 08 2018 Sandro Bonazzola <sbonazzo at redhat.com> - ev-2.9.0-16.el7_4.14.1 - Removing RH branding from package name * Thu Jan 18 2018 Miroslav Rezanina <mrezanin at redhat.com> - rhev-2.9.0-16.el7_4.14 - kvm-fw_cfg-fix-memory-corruption-when-all-fw_cfg-slots-a.patch [bz#1534649] - kvm-mirror-Fix-inconsistent-backing-AioContext-for-after.patch [bz#1535125] - Resolves: bz#1534649 (Qemu crashes when all fw_cfg slots are used [rhel-7.4.z]) - Resolves: bz#1535125 (Mirror jobs for drives with iothreads make QEMU to...

Hi For the latest seabios version, it said: Support for vga emulation over a serial port in SeaBIOS (sercon). So I want to know how can I find the application of this feature in libvirt? And whether my understanding is correct? There are no related instruction on the website: https://libvirt.org/ My understanding: (1) The feature means: we can set this the IO address of a serial port to

...ds of milliseconds. I need to work out exactly what's going on here. Since we never required ACPI before now, I never had the impetus to find out if this is easy to fix. - The extra modules in the supermin mini-initrd greatly increase its size, which also slows things down. qemu fw_cfg DMA should help here, if we ever manage to get it upstream. - vNVDIMM and DAX are not very widely tested or used yet. - Not supported at all by libvirt. Rich.

...hanges since commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4: Linux 4.14 (2017-11-12 10:46:13 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus for you to fetch changes up to c1d0c3f623ada808904dec676da0126f5b800630: fw_cfg: fix the command line module name (2017-11-14 23:57:40 +0200) ---------------------------------------------------------------- virtio, vhost, qemu: bugfixes, cleanups Fixes in qemu, vhost and virtio. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> -----------------------------------...

The following changes since commit c1d0c3f623ada808904dec676da0126f5b800630: fw_cfg: fix the command line module name (2017-11-14 23:57:40 +0200) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus for you to fetch changes up to d9e427f6ab8142d6868eb719e6a7851aafea56b6: virtio_balloon: fix increment of vb->n...

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 5d457fe6aeaab9d0a1665eafc8af7139bc6b6f2e commit: 5d457fe6aeaab9d0a1665eafc8af7139bc6b6f2e [24/24] fw_cfg: fix sparse warnings around FW_CFG_FILE_DIR read config: i386-randconfig-x015-201806 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: git checkout 5d457fe6aeaab9d0a1665eafc8af7139bc6b6f2e # save the attached .config to linux build tree make ARCH=i386...

...eb 14, 2018 at 9:27 PM, kbuild test robot > <fengguang.wu at intel.com> wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost > > head: 5d457fe6aeaab9d0a1665eafc8af7139bc6b6f2e > > commit: 5d457fe6aeaab9d0a1665eafc8af7139bc6b6f2e [24/24] fw_cfg: fix sparse warnings around FW_CFG_FILE_DIR read > > config: i386-randconfig-x015-201806 (attached as .config) > > compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 > > reproduce: > > git checkout 5d457fe6aeaab9d0a1665eafc8af7139bc6b6f2e > > # save the attached .c...

...this to the IO address of a serial port to enable SeaBIOS' VGA adapter emulation on the given serial port. However looking at current QEMU master, there is no such setting being done (I just did simple git grep sercon-port). However it looks like other options are being set using fw_cfg_add_file, so it should be possible to set that using something like: -fw_cfg name=etc/sercon-port,string=0x3F8 but when I tried (with seabios 1.11.0), I realized I'm not sure how to see whether it works or not. How would I try that, easily? Anyway, if the above is the case, we don't _ye...

...hanges since commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4: Linux 4.14 (2017-11-12 10:46:13 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus for you to fetch changes up to c1d0c3f623ada808904dec676da0126f5b800630: fw_cfg: fix the command line module name (2017-11-14 23:57:40 +0200) ---------------------------------------------------------------- virtio, vhost, qemu: bugfixes, cleanups Fixes in qemu, vhost and virtio. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> -----------------------------------...

The following changes since commit c1d0c3f623ada808904dec676da0126f5b800630: fw_cfg: fix the command line module name (2017-11-14 23:57:40 +0200) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus for you to fetch changes up to d9e427f6ab8142d6868eb719e6a7851aafea56b6: virtio_balloon: fix increment of vb->n...

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 3d22d7c1190db3209b644b8a13a75a9802b4587f commit: b3a8771f409b74c42deee28aee3092fc5d2c8dab [22/23] fw_cfg: write vmcoreinfo details reproduce: # apt-get install sparse git checkout b3a8771f409b74c42deee28aee3092fc5d2c8dab make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) drivers/firmware/qemu_fw_cfg.c:108:...

Hi, On Tue, Nov 15, 2016 at 11:38 PM, Paolo Bonzini <pbonzini at redhat.com> wrote: > > > On 15/11/2016 15:36, Namhyung Kim wrote: >> Hi, >> >> On Tue, Nov 15, 2016 at 10:57:29AM +0100, Paolo Bonzini wrote: >>> >>> >>> On 15/11/2016 06:06, Michael S. Tsirkin wrote: >>>> On Tue, Nov 15, 2016 at 01:50:21PM +0900, Namhyung Kim

Hi, On Tue, Nov 15, 2016 at 11:38 PM, Paolo Bonzini <pbonzini at redhat.com> wrote: > > > On 15/11/2016 15:36, Namhyung Kim wrote: >> Hi, >> >> On Tue, Nov 15, 2016 at 10:57:29AM +0100, Paolo Bonzini wrote: >>> >>> >>> On 15/11/2016 06:06, Michael S. Tsirkin wrote: >>>> On Tue, Nov 15, 2016 at 01:50:21PM +0900, Namhyung Kim

...no such thing as 64-bit I/O ports, and the rest can be used for the actual buffer. QEMU already has an interface to allocate RAM and patch the address into an ACPI table (bios_linker_loader_alloc). Because this interface is actually meant to load data from QEMU into the firmware (using the "fw_cfg" interface), you would have to add a dummy 8KB file to fw_cfg using fw_cfg_add_file (for example "etc/erst-memory"), it can be just full of zeros. QEMU supports two chipsets, PIIX and ICH9, and the free I/O port ranges are different. You could use 0xa20 for ICH9 and 0xae20 for PIIX...

...limit on the size? It'd be great if it can use a few MB.. > > QEMU already has an interface to allocate RAM and patch the address into an > ACPI table (bios_linker_loader_alloc). Because this interface is actually meant > to load data from QEMU into the firmware (using the "fw_cfg" interface), you > would have to add a dummy 8KB file to fw_cfg using fw_cfg_add_file (for > example "etc/erst-memory"), it can be just full of zeros. > > QEMU supports two chipsets, PIIX and ICH9, and the free I/O port ranges are > different. You could use 0xa20 for...