kvm_follow_pfn() is able to work with NULL in the .map_writable field
of the homonymous struct. But __kvm_faultin_pfn() rejects the combo
despite KVM for e500 trying to use it. Indeed .map_writable is not
particularly useful if the flags include FOLL_WRITE and readonly
guest memory is not support
Add documentation to 'papr_hcalls.rst' describing the
input, output and return values of the H_HTM hcall as
per the internal specification.
v3 patch:
https://lore.kernel.org/linuxppc-dev/20240828085223.42177-3-ma...@linux.ibm.com/
Signed-off-by: Abhishek Dubey
Co-developed-by: Madhavan Sriniv
This patch adds debugfs interface to export Hardware Trace Macro (HTM)
function data in a LPAR. New hypervisor call "H_HTM" has been
defined to setup, configure, control and dump the HTM data.
This patch supports only dumping of HTM data in a LPAR.
New debugfs folder called "htmdump" has been added
Define macros and wrapper functions to handle
H_HTM (Hardware Trace Macro) hypervisor call.
H_HTM is new HCALL added to export data from
Hardware Trace Macro (HTM) function.
v3 patch:
https://lore.kernel.org/linuxppc-dev/20240828085223.42177-1-ma...@linux.ibm.com/
Signed-off-by: Abhishek Dubey
Hi All,
I have compiled the RC5 of kernel 6.13 [1] with the latest revert patch. [2]
After that, I successfully tested the following QEMU/KVM HV components.
- Guest performance: good
- Guest boot time: short
- KVM HV works (-enable-kvm)
- SMP works (-smp 4)
- QEMU User Networking (SLIRP) via Vi
On 2024-12-30 16:50:41-0800, Alexei Starovoitov wrote:
> On Sat, Dec 28, 2024 at 12:43 AM Thomas Weißschuh
> wrote:
> >
> > Most users use this function through the BIN_ATTR_SIMPLE* macros,
> > they can handle the switch transparently.
> >
> > This series is meant to be merged through the driver
