Make memremap(MEMREMAP_WB) produce encrypted/private mapping by default
unless MEMREMAP_DEC is specified.

It fixes crash on kexec in TDX guests if CONFIG_EISA is enabled.

v2:
 - Fix sparse warning;

Kirill A. Shutemov (2):
  memremap: Pass down MEMREMAP_* flags to arch_memremap_wb()
  x86/mm: Make memremap(MEMREMAP_WB) map memory as encrypted by default

 arch/arm/include/asm/io.h   | 2 +-
 arch/arm/mm/ioremap.c       | 2 +-
 arch/arm/mm/nommu.c         | 2 +-
 arch/riscv/include/asm/io.h | 2 +-
 arch/x86/include/asm/io.h   | 3 +++
 arch/x86/mm/ioremap.c       | 8 ++++++++
 kernel/iomem.c              | 5 +++--
 7 files changed, 18 insertions(+), 6 deletions(-)

-- 
2.45.2

Kirill A. Shutemov (2):
  memremap: Pass down MEMREMAP_* flags to arch_memremap_wb()
  x86/mm: Make memremap(MEMREMAP_WB) map memory as encrypted by default

 arch/arm/include/asm/io.h   | 2 +-
 arch/arm/mm/ioremap.c       | 2 +-
 arch/arm/mm/nommu.c         | 2 +-
 arch/riscv/include/asm/io.h | 2 +-
 arch/x86/include/asm/io.h   | 3 +++
 arch/x86/mm/ioremap.c       | 8 ++++++++
 kernel/iomem.c              | 5 +++--
 7 files changed, 18 insertions(+), 6 deletions(-)

-- 
2.45.2

On Mon, Oct 21, 2024 at 01:57:21PM +0300, Kirill A. Shutemov wrote:
> Make memremap(MEMREMAP_WB) produce encrypted/private mapping by default
> unless MEMREMAP_DEC is specified.
> 
> It fixes crash on kexec in TDX guests if CONFIG_EISA is enabled.

Ping? Any feedback is welcome.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov

On Tue, Oct 29, 2024 at 05:11:26PM +0200, Kirill A. Shutemov wrote:
> On Mon, Oct 21, 2024 at 01:57:21PM +0300, Kirill A. Shutemov wrote:
> > Make memremap(MEMREMAP_WB) produce encrypted/private mapping by default
> > unless MEMREMAP_DEC is specified.
> > 
> > It fixes crash on kexec in TDX guests if CONFIG_EISA is enabled.
> 
> Ping? Any feedback is welcome.

The patchset fixes crash. Please consider applying.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov