[xen staging] docs/man: fix xl(1) documentation for 'pci' operations

[patchbot@xxxxxxx]

commit 8bc342b043a6838c03cd86039a34e3f8eea1242f
Author:     Paul Durrant <pdurrant@xxxxxxxxxx>
AuthorDate: Tue Dec 8 19:30:25 2020 +0000
Commit:     Wei Liu <wl@xxxxxxx>
CommitDate: Tue Dec 15 16:24:23 2020 +0000

    docs/man: fix xl(1) documentation for 'pci' operations
    
    Currently the documentation completely fails to mention the existence of
    PCI_SPEC_STRING. This patch tidies things up, specifically clarifying that
    'pci-assignable-add/remove' take <BDF> arguments where as 
'pci-attach/detach'
    take <PCI_SPEC_STRING> arguments (which will be enforced in a subsequent
    patch).
    
    Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>
    Acked-by: Wei Liu <wl@xxxxxxx>
---
 docs/man/xl.1.pod.in | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/docs/man/xl.1.pod.in b/docs/man/xl.1.pod.in
index eaa72faad6..af31d2b572 100644
--- a/docs/man/xl.1.pod.in
+++ b/docs/man/xl.1.pod.in
@@ -1597,14 +1597,18 @@ List virtual network interfaces for a domain.
 
 =item B<pci-assignable-list>
 
-List all the assignable PCI devices.
+List all the B<BDF> of assignable PCI devices. See
+L<xl-pci-configuration(5)> for more information.
+
 These are devices in the system which are configured to be
 available for passthrough and are bound to a suitable PCI
 backend driver in domain 0 rather than a real driver.
 
 =item B<pci-assignable-add> I<BDF>
 
-Make the device at PCI Bus/Device/Function BDF assignable to guests.
+Make the device at B<BDF> assignable to guests. See
+L<xl-pci-configuration(5)> for more information.
+
 This will bind the device to the pciback driver and assign it to the
 "quarantine domain".  If it is already bound to a driver, it will
 first be unbound, and the original driver stored so that it can be
@@ -1620,8 +1624,10 @@ being used.
 
 =item B<pci-assignable-remove> [I<-r>] I<BDF>
 
-Make the device at PCI Bus/Device/Function BDF not assignable to
-guests.  This will at least unbind the device from pciback, and
+Make the device at B<BDF> not assignable to guests. See
+L<xl-pci-configuration(5)> for more information.
+
+This will at least unbind the device from pciback, and
 re-assign it from the "quarantine domain" back to domain 0.  If the -r
 option is specified, it will also attempt to re-bind the device to its
 original driver, making it usable by Domain 0 again.  If the device is
@@ -1637,15 +1643,15 @@ As always, this should only be done if you trust the 
guest, or are
 confident that the particular device you're re-assigning to dom0 will
 cancel all in-flight DMA on FLR.
 
-=item B<pci-attach> I<domain-id> I<BDF>
+=item B<pci-attach> I<domain-id> I<PCI_SPEC_STRING>
 
-Hot-plug a new pass-through pci device to the specified domain.
-B<BDF> is the PCI Bus/Device/Function of the physical device to pass-through.
+Hot-plug a new pass-through pci device to the specified domain. See
+L<xl-pci-configuration(5)> for more information.
 
-=item B<pci-detach> [I<OPTIONS>] I<domain-id> I<BDF>
+=item B<pci-detach> [I<OPTIONS>] I<domain-id> I<PCI_SPEC_STRING>
 
-Hot-unplug a previously assigned pci device from a domain. B<BDF> is the PCI
-Bus/Device/Function of the physical device to be removed from the guest domain.
+Hot-unplug a pci device that was previously passed through to a domain. See
+L<xl-pci-configuration(5)> for more information.
 
 B<OPTIONS>
 
@@ -1660,7 +1666,7 @@ even without guest domain's collaboration.
 
 =item B<pci-list> I<domain-id>
 
-List pass-through pci devices for a domain.
+List the B<BDF> of pci devices passed through to a domain.
 
 =back
 
--
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