On 2019年08月16日 21:12, Dan Carpenter wrote:
On Fri, Aug 16, 2019 at 10:25:51AM +0800, Zhao Yakui wrote:
+ case IC_VM_INTR_MONITOR: {
+ struct page *page;
+
+ ret = get_user_pages_fast(ioctl_param, 1, 1, );
+ if (unlikely(ret != 1) || !page) {
Currently, various virtual memory areas of Linux RISC-V are organized
in increasing order of their virtual addresses is as follows:
1. User space area (This is lowest area and starts at 0x0)
2. FIXMAP area
3. VMALLOC area
4. Kernel area (This is highest area and starts at PAGE_OFFSET)
The maximum
On Mon, Aug 19, 2019 at 09:44:25AM +0800, Zhao, Yakui wrote:
>
>
> On 2019年08月16日 14:39, Borislav Petkov wrote:
> > On Fri, Aug 16, 2019 at 10:25:41AM +0800, Zhao Yakui wrote:
> > > The first three patches are the changes under x86/acrn, which adds the
> > > required APIs for the driver and
On Thu, Aug 15, 2019 at 05:09:43PM -0700, Scott Branden wrote:
> Add test config into_buf to allow request_firmware_into_buf to be
> called instead of request_firmware/request_firmware_direct. The number
> of parameters differ calling request_firmware_into_buf and support
> has not been added to
On Thu, Aug 15, 2019 at 05:09:44PM -0700, Scott Branden wrote:
> Add tests cases for checking request_firmware_into_buf api.
> API was introduced into kernel with no testing present previously.
>
> Signed-off-by: Scott Branden
Acked-by: Luis Chamberlain
Luis
On Mon, Aug 19, 2019 at 10:39:32AM +0800, Zhao, Yakui wrote:
>
>
> On 2019年08月16日 15:03, Greg KH wrote:
> > On Fri, Aug 16, 2019 at 08:39:25AM +0200, Borislav Petkov wrote:
> > > On Fri, Aug 16, 2019 at 10:25:41AM +0800, Zhao Yakui wrote:
> > > > The first three patches are the changes under
On Mon, Aug 19, 2019 at 12:02:33PM +0800, Zhao, Yakui wrote:
>
>
> On 2019年08月16日 15:05, Greg KH wrote:
> > On Fri, Aug 16, 2019 at 10:25:45AM +0800, Zhao Yakui wrote:
> > > ACRN hypervisor service module is the important middle layer that allows
> > > the Linux kernel to communicate with the
On Sun, Aug 18, 2019 at 11:05:53AM +0200, Christoph Hellwig wrote:
> Hi Dan and Jason,
>
> Bharata has been working on secure page management for kvmppc guests,
> and one I thing I noticed is that he had to fake up a struct device
> just so that it could be passed to the devm_memremap_pages
>
Acked-by: Gabriel Fernandez
From: Stephen Boyd
Sent: Friday, August 16, 2019 7:36 PM
To: YueHaibing; alli...@lohutok.net; gre...@linuxfoundation.org;
mturque...@baylibre.com; Gabriel FERNANDEZ
Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org;
Acked-by: Gabriel Fernandez
From: Stephen Boyd
Sent: Friday, August 16, 2019 7:36 PM
To: YueHaibing; i...@metux.net; mturque...@baylibre.com; r...@kernel.org;
Gabriel FERNANDEZ
Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org; YueHaibing
在 2019/8/15 下午10:58, Thomas Gleixner 写道:
Ben,
On Thu, 15 Aug 2019, Ben Luo wrote:
Sometimes, only the dev_id field of irqaction need to be changed.
E.g. KVM VM with device passthru via VFIO may switch irq injection
path between KVM irqfd and userspace eventfd. These two paths
share the same
On 2019年08月16日 20:58, Dan Carpenter wrote:
On Fri, Aug 16, 2019 at 10:25:49AM +0800, Zhao Yakui wrote:
+int hugepage_map_guest(struct acrn_vm *vm, struct vm_memmap *memmap)
+{
+ struct page *page = NULL, *regions_buf_pg = NULL;
+ unsigned long len, guest_gpa, vma;
+ struct
On Thu, Aug 15, 2019 at 05:09:45PM -0700, Scott Branden wrote:
> A race condition exists between _request_firmware_prepare checking
> if firmware is assigned and firmware_fallback_sysfs creating a sysfs
> entry (kernel trace below). To avoid such condition add a mutex
> fw_lock_fallback to
Le 18/08/2019 à 14:01, Segher Boessenkool a écrit :
On Sat, Aug 17, 2019 at 09:04:42AM +, Christophe Leroy wrote:
Unlike BUG_ON(x), WARN_ON(x) uses !!(x) as the trigger
of the t(d/w)nei instruction instead of using directly the
value of x.
This leads to GCC adding unnecessary pair of
On 2019年08月19日 13:25, Greg KH wrote:
On Mon, Aug 19, 2019 at 09:44:25AM +0800, Zhao, Yakui wrote:
On 2019年08月16日 14:39, Borislav Petkov wrote:
On Fri, Aug 16, 2019 at 10:25:41AM +0800, Zhao Yakui wrote:
The first three patches are the changes under x86/acrn, which adds the
required APIs
Currently fuse_writepages_fill() calls get_fuse_inode() few times with
the same argument.
Signed-off-by: Vasily Averin
---
fs/fuse/file.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index e076c2cf65b0..bc9b64ef7b5d 100644
---
From: Zhaoyang Huang
pfn_valid can be wrong when parsing a invalid pfn whose phys address
exceeds BITS_PER_LONG as the MSB will be trimed when shifted.
The issue originally arise from bellowing call stack, which corresponding to
an access of the /proc/kpageflags from userspace with a invalid
On 8/18/19 9:34 PM, Nathan Chancellor wrote:
> r369217 in clang added a new warning about potential misuse of the xor
> operator as an exponentiation operator:
>
> ../lib/test_bpf.c:870:13: warning: result of '10 ^ 300' is 294; did you
> mean '1e300'? [-Wxor-used-as-pow]
> { {
Add CONFIG_ASM_MODVERSIONS to remove one if-conditional nesting
from Makefile.build
This also avoid $(wildcard ...) evaluation for every descending,
but I did not see measurable performance improvement.
Signed-off-by: Masahiro Yamada
---
arch/Kconfig | 7 +++
arch/alpha/Kconfig
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