lkml.org 
[lkml]   [2020]   [Dec]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [PATCH 1/1] efi/efi_test: read RuntimeServicesSupported
    From
    Date
    On 11/27/20 8:20 PM, Heinrich Schuchardt wrote:
    > Since the UEFI 2.8A specification the UEFI enabled firmware provides a
    > configuration table EFI_RT_PROPERTIES_TABLE which indicates which runtime
    > services are enabled. The EFI stub reads this table and saves the value of
    > the field RuntimeServicesSupported internally.
    >
    > The Firmware Test Suite requires the value to determine if UEFI runtime
    > services are correctly implemented.
    >
    > With this patch an IOCTL call is provided to read the value of the field
    > RuntimeServicesSupported, e.g.
    >
    > #define EFI_RUNTIME_GET_SUPPORTED_MASK \
    > _IOR('p', 0x0C, unsigned int)
    > unsigned int mask;
    > fd = open("/dev/efi_test", O_RDWR);
    > ret = ioctl(fd, EFI_RUNTIME_GET_SUPPORTED_MASK, &mask);
    >
    > Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

    Hello Ard,

    the patch has now been admitted to Linus' branch.

    Could we, please, have this patch applied to the 5.10 long term release,
    too.

    Best regards

    Heinrich

    > ---
    > drivers/firmware/efi/test/efi_test.c | 16 ++++++++++++++++
    > drivers/firmware/efi/test/efi_test.h | 3 +++
    > 2 files changed, 19 insertions(+)
    >
    > diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c
    > index ddf9eae396fe..47d67bb0a516 100644
    > --- a/drivers/firmware/efi/test/efi_test.c
    > +++ b/drivers/firmware/efi/test/efi_test.c
    > @@ -663,6 +663,19 @@ static long efi_runtime_query_capsulecaps(unsigned long arg)
    > return rv;
    > }
    >
    > +static long efi_runtime_get_supported_mask(unsigned long arg)
    > +{
    > + unsigned int __user *supported_mask;
    > + int rv = 0;
    > +
    > + supported_mask = (unsigned int *)arg;
    > +
    > + if (put_user(efi.runtime_supported_mask, supported_mask))
    > + rv = -EFAULT;
    > +
    > + return rv;
    > +}
    > +
    > static long efi_test_ioctl(struct file *file, unsigned int cmd,
    > unsigned long arg)
    > {
    > @@ -699,6 +712,9 @@ static long efi_test_ioctl(struct file *file, unsigned int cmd,
    >
    > case EFI_RUNTIME_RESET_SYSTEM:
    > return efi_runtime_reset_system(arg);
    > +
    > + case EFI_RUNTIME_GET_SUPPORTED_MASK:
    > + return efi_runtime_get_supported_mask(arg);
    > }
    >
    > return -ENOTTY;
    > diff --git a/drivers/firmware/efi/test/efi_test.h b/drivers/firmware/efi/test/efi_test.h
    > index f2446aa1c2e3..117349e57993 100644
    > --- a/drivers/firmware/efi/test/efi_test.h
    > +++ b/drivers/firmware/efi/test/efi_test.h
    > @@ -118,4 +118,7 @@ struct efi_resetsystem {
    > #define EFI_RUNTIME_RESET_SYSTEM \
    > _IOW('p', 0x0B, struct efi_resetsystem)
    >
    > +#define EFI_RUNTIME_GET_SUPPORTED_MASK \
    > + _IOR('p', 0x0C, unsigned int)
    > +
    > #endif /* _DRIVERS_FIRMWARE_EFI_TEST_H_ */
    > --
    > 2.29.2
    >

    \
     
     \ /
      Last update: 2020-12-26 11:18    [W:3.531 / U:0.000 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site