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* [cloud] Use PCIAPI_DIRECT for cloud imagesMichael Brown2021-02-131-0/+0
| | | | | | | | | | | | | | | | | | | | | | The version of SeaBIOS found on some AWS EC2 instances (observed with t3a.nano in eu-west-1) has no support for the INT 1A PCI BIOS calls. Bring config/ioapi.h into the named-configuration set of headers, and specify the use of PCIAPI_DIRECT for CONFIG=cloud, to work around the missing PCI BIOS support. Switching to a different named configuration will now unfortunately cause an almost complete rebuild of iPXE. As described in commit c801cb2 ("[build] Allow for named configurations at build time"), this is the reason why config/ioapi.h was not originally in the named-configuration set of header files. This rebuild cost is acceptable given that build times are substantially faster now than seven years ago, and that very few people are likely to be switching named configurations on a regular basis. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Disable TIVOLI_VMM_WORKAROUND in the qemu configurationLaszlo Ersek2016-11-081-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This prevents KVM guests from crashing that run iPXE on host CPUs without "unrestricted_guest" support. Once KVM gets the FXSAVE / FXRSTOR emulation feature (*), and the feature becomes widely available to users, we can back out this change from iPXE. (*) Already in progress by Radim: [PATCH 0/2] KVM: x86: emulate fxsave and fxrstor https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1258895.html https://www.spinics.net/lists/kernel/msg2370327.html Cc: Bandan Das <bsd@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Greg <rollenwiese@yahoo.com> Cc: Michael Brown <mcb30@ipxe.org> Cc: Michael Prokop <launchpad@michael-prokop.at> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Pickford <arch@netremedies.ca> Cc: Radim Krčmář <rkrcmar@redhat.com> Ref: https://bugs.archlinux.org/task/50778 Ref: https://bugs.launchpad.net/qemu/+bug/1623276 Ref: https://bugzilla.proxmox.com/show_bug.cgi?id=1182 Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1356762 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Add named configuration for qemuMichael Brown2015-07-228-0/+10
Add a named configuration for qemu, based on the config.ipxe.general.h file taken from the current qemu repository and enabling the option to work around the missing EFI_PXE_BASE_CODE_PROTOCOL. Signed-off-by: Michael Brown <mcb30@ipxe.org>