Some more comments. Mostly minor wording issues, except the prctl() exclusion
at the end.
On 25/07/2019 14:50, Vincenzo Frascino wrote:
On arm64 the TCR_EL1.TBI0 bit has been always enabled hence
the userspace (EL0) is allowed to set a non-zero value in the
top byte but the resulting pointers a
On 30/07/2019 14:25, Vincenzo Frascino wrote:
Hi Kevin,
On 7/30/19 11:32 AM, Kevin Brodsky wrote:
Some more comments. Mostly minor wording issues, except the prctl() exclusion at
the end.
On 25/07/2019 14:50, Vincenzo Frascino wrote:
On arm64 the TCR_EL1.TBI0 bit has been always enabled
On 30/07/2019 15:24, Vincenzo Frascino wrote:
Hi Kevin,
On 7/30/19 2:57 PM, Kevin Brodsky wrote:
On 30/07/2019 14:25, Vincenzo Frascino wrote:
Hi Kevin,
On 7/30/19 11:32 AM, Kevin Brodsky wrote:
Some more comments. Mostly minor wording issues, except the prctl() exclusion at
the end.
On 25
allows userspace to pass certain tagged pointers to
kernel syscalls.
Cc: Will Deacon
Cc: Andrey Konovalov
Cc: Szabolcs Nagy
Cc: Kevin Brodsky
Signed-off-by: Vincenzo Frascino
Co-developed-by: Catalin Marinas
Signed-off-by: Catalin Marinas
---
Documentation/arm64/tagged-address-abi.rst
document describing the relaxation of the
syscall ABI that allows userspace to pass certain tagged pointers to
kernel syscalls.
Cc: Will Deacon
Cc: Andrey Konovalov
Cc: Szabolcs Nagy
Cc: Kevin Brodsky
Signed-off-by: Vincenzo Frascino
Co-developed-by: Catalin Marinas
Signed-off-by: Catalin
I'm happy with the ABI overall, but I think we need a few more tweaks.
On 13/06/2019 16:51, Vincenzo Frascino wrote:
On arm64 the TCR_EL1.TBI0 bit has been always enabled hence
the userspace (EL0) is allowed to set a non-zero value in the
top byte but the resulting pointers are not allowed at th
On 19/12/2018 12:52, Dave Martin wrote:
On Tue, Dec 18, 2018 at 05:59:38PM +, Catalin Marinas wrote:
On Tue, Dec 18, 2018 at 04:03:38PM +0100, Andrey Konovalov wrote:
On Wed, Dec 12, 2018 at 4:02 PM Catalin Marinas wrote:
The summary of our internal discussions (mostly between kernel
deve
(+Cc other people with MTE experience: Branislav, Ruben)
On 13/02/2019 14:58, Dave Martin wrote:
On Tue, Feb 12, 2019 at 06:02:24PM +, Catalin Marinas wrote:
On Mon, Feb 11, 2019 at 12:32:55PM -0800, Evgenii Stepanov wrote:
On Mon, Feb 11, 2019 at 9:28 AM Kevin Brodsky wrote:
On 19/12
On 13/02/2019 21:41, Evgenii Stepanov wrote:
On Wed, Feb 13, 2019 at 9:43 AM Dave Martin wrote:
On Wed, Feb 13, 2019 at 04:42:11PM +, Kevin Brodsky wrote:
(+Cc other people with MTE experience: Branislav, Ruben)
[...]
I'm wondering whether we can piggy-back on existing concepts
On 25/02/2019 18:02, Szabolcs Nagy wrote:
On 25/02/2019 16:57, Catalin Marinas wrote:
On Tue, Feb 19, 2019 at 06:38:31PM +, Szabolcs Nagy wrote:
i think these rules work for the cases i care about, a more
tricky question is when/how to check for the new syscall abi
and when/how the TCR_EL1.
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