7eeb4c2ce8
target/arm: Use bit 55 explicitly for pauth
...
The psuedocode in aarch64/functions/pac/auth/Auth and
aarch64/functions/pac/strip/Strip always uses bit 55 for
extfield and do not consider if the current regime has 2 ranges.
Suggested-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Message-id: 20200216194343.21331-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2020-02-21 16:07:00 +00:00
a7469a3c1e
target/arm: check TGE and E2H flags for EL0 pauth traps
...
According to ARM ARM we should only trap from the EL1&0 regime.
Tested-by: Alex Bennée <alex.bennee@linaro.org >
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Alex Bennée <alex.bennee@linaro.org >
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Message-id: 20200206105448.4726-35-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2020-02-07 14:04:26 +00:00
aaec143212
target/arm: Update arm_sctlr for VHE
...
Use the correct sctlr for EL2&0 regime. Due to header ordering,
and where arm_mmu_idx_el is declared, we need to move the function
out of line. Use the function in many more places in order to
select the correct control.
Tested-by: Alex Bennée <alex.bennee@linaro.org >
Reviewed-by: Alex Bennée <alex.bennee@linaro.org >
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Message-id: 20200206105448.4726-23-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2020-02-07 14:04:24 +00:00
de0b1bae64
target/arm: Fix PAuth sbox functions
...
In the PAC computation, sbox was applied over wrong bits.
As this is a 4-bit sbox, bit index should be incremented by 4 instead of 16.
Test vector from QARMA paper (https://eprint.iacr.org/2016/444.pdf ) was
used to verify one computation of the pauth_computepac() function which
uses sbox2.
Launchpad: https://bugs.launchpad.net/bugs/1859713
Reviewed-by: Richard Henderson <richard.henderson@linaro.org >
Signed-off-by: Vincent DEHORS <vincent.dehors@smile.fr >
Signed-off-by: Adrien GRASSEIN <adrien.grassein@smile.fr >
Message-id: 20200116230809.19078-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2020-01-23 15:22:38 +00:00
d67ebada15
target/arm: Fix output of PAuth Auth
...
The ARM pseudocode installs the error_code into the original
pointer, not the encrypted pointer. The difference applies
within the 7 bits of pac data; the result should be the sign
extension of bit 55.
Add a testcase to that effect.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2019-06-13 15:14:03 +01:00
108b3ba891
target/arm: Put all PAC keys into a structure
...
This allows us to use a single syscall to initialize them all.
Reviewed-by: Laurent Vivier <lvivier@redhat.com >
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com >
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
2019-05-22 12:38:54 -04:00
990870b205
target/arm: Implement pauth_computepac
...
This is the main crypto routine, an implementation of QARMA.
This matches, as much as possible, ARM pseudocode.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Message-id: 20190108223129.5570-28-richard.henderson@linaro.org
[PMM: fixed minor checkpatch nits]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2019-01-21 10:38:55 +00:00
63ff0ca94c
target/arm: Implement pauth_addpac
...
This is not really functional yet, because the crypto is not yet
implemented. This, however follows the AddPAC pseudo function.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Message-id: 20190108223129.5570-27-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2019-01-21 10:38:55 +00:00
a7bfa086c9
target/arm: Implement pauth_auth
...
This is not really functional yet, because the crypto is not yet
implemented. This, however follows the Auth pseudo function.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Message-id: 20190108223129.5570-26-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2019-01-21 10:38:54 +00:00
04d13549fa
target/arm: Implement pauth_strip
...
Stripping out the authentication data does not require any crypto,
it merely requires the virtual address parameters.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Message-id: 20190108223129.5570-25-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2019-01-21 10:38:54 +00:00
0d43e1a2d2
target/arm: Add PAuth helpers
...
The cryptographic internals are stubbed out for now,
but the enable and trap bits are checked.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org >
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Message-id: 20190108223129.5570-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2019-01-21 10:38:53 +00:00
