On Mon, Jul 22, 2019 at 03:55:40PM -0700, Nadav Amit wrote:
> Enable to run the tests when test-device is not present (e.g.,
> bare-metal). Users can provide the number of CPUs and ram size through
> kernel parameters.
>
> On Ubuntu that uses grub, for example, the tests can be run by copying a
> test to the boot directory (/boot) and adding a menu-entry to grub
> (e.g., by editing /etc/grub.d/40_custom):
>
> menuentry 'idt_test' {
> set root='[ROOT]'
> multiboot [BOOT_RELATIVE]/[TEST].flat [PARAMETERS]
> module params.initrd
> }
>
> Replace:
> * [ROOT] with `grub-probe --target=bios_hints /boot`
> * [BOOT_RELATIVE] with `grub-mkrelpath /boot`
> * [TEST] with the test executed
> * [PARAMETERS] with the test parameters
>
> params.initrd, which would be located on the boot directory should
> describe the machine and tell the test infrastructure that a test
> device is not present and boot-loader was used (the bootloader and qemu
> deliver test . For example for a 4 core machines with 4GB of
> memory:
>
> NR_CPUS=4
> MEMSIZE=4096
> TEST_DEVICE=0
> BOOTLOADER=1
>
> Since we do not really use E820, using more than 4GB is likely to fail
> due to holes.
>
> Finally, do not forget to run update-grub. Remember that the output goes
> to the serial port.
>
> Cc: Andrew Jones <drjones@xxxxxxxxxx>
> Signed-off-by: Nadav Amit <nadav.amit@xxxxxxxxx>
>
> ---
>
> v2->v3:
> * Adding argument to argv when bootloader is used [Andrew]
> * Avoid unnecessary check of test-device availability [Andrew]
>
> v1->v2:
> * Using initrd to hold configuration override [Andrew]
> * Adapting vmx, tscdeadline_latency not to ignore the first argument
> on native
> ---
> lib/argv.c | 13 +++++++++----
> lib/argv.h | 1 +
> lib/x86/fwcfg.c | 28 ++++++++++++++++++++++++++++
> lib/x86/fwcfg.h | 10 ++++++++++
> lib/x86/setup.c | 5 +++++
> x86/apic.c | 4 +++-
> x86/cstart64.S | 8 ++++++--
> x86/eventinj.c | 17 ++++++++++++++---
> x86/vmx_tests.c | 5 +++++
> 9 files changed, 81 insertions(+), 10 deletions(-)
>
Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx>
