> -----Original Message----- > From: Miao Li <[email protected]> > Sent: Thursday, May 25, 2023 10:01 PM > To: [email protected] > Cc: Sunil Kumar Kori <[email protected]>; [email protected]; > [email protected]; [email protected]; > [email protected]; [email protected]; Anatoly Burakov > <[email protected]> > Subject: [EXT] [PATCH v3 4/4] bus/pci: add VFIO sparse mmap support > > External Email > > ---------------------------------------------------------------------- > This patch adds sparse mmap support in PCI bus. Sparse mmap is a capability > defined in VFIO which allows multiple mmap areas in one VFIO region. > > In this patch, the sparse mmap regions are mapped to one continuous virtual > address region that follows device-specific BAR layout. So, driver can still > access all mapped sparse mmap regions by using 'bar_base_address + > bar_offset'. > > Signed-off-by: Miao Li <[email protected]> > Signed-off-by: Chenbo Xia <[email protected]> > --- > drivers/bus/pci/linux/pci_vfio.c | 104 +++++++++++++++++++++++++++---- > drivers/bus/pci/private.h | 2 + > 2 files changed, 94 insertions(+), 12 deletions(-) >
Acked-by: Sunil Kumar Kori <[email protected]> ... [snipped] ... > 2.25.1
