Messages in this thread | | | Subject | Re: [PATCH v2] xen/privcmd: allow fetching resource sizes | From | Andrew Cooper <> | Date | Tue, 12 Jan 2021 20:09:09 +0000 |
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On 12/01/2021 12:17, Jürgen Groß wrote: > On 12.01.21 12:53, Roger Pau Monne wrote: >> Allow issuing an IOCTL_PRIVCMD_MMAP_RESOURCE ioctl with num = 0 and >> addr = 0 in order to fetch the size of a specific resource. >> >> Add a shortcut to the default map resource path, since fetching the >> size requires no address to be passed in, and thus no VMA to setup. >> >> This is missing from the initial implementation, and causes issues >> when mapping resources that don't have fixed or known sizes. >> >> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> >> Cc: stable@vger.kernel.org # >= 4.18 > > Reviewed-by: Juergen Gross <jgross@suse.com>
Tested-by: Andrew Cooper <andrew.cooper3@citrix.com>
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