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hvf: add guest debugging handlers for Apple Silicon hosts

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Guests can now be debugged through the gdbstub. Support is added for
single-stepping, software breakpoints, hardware breakpoints and
watchpoints. The code has been structured like the KVM counterpart.

While guest debugging is enabled, the guest can still read and write the
DBG*_EL1 registers but they don't have any effect.

Signed-off-by: Francesco Cagnin <fcagnin@quarkslab.com>
Message-id: 20230601153107.81955-5-fcagnin@quarkslab.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Francesco Cagnin 2023-06-06 10:19:30 +01:00 • committed by Peter Maydell
parent f41520402c
commit eb2edc42b1
7 changed files with 520 additions and 2 deletions
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7
target/arm/hvf_arm.h
View file

@ -13,6 +13,13 @@
#include "cpu.h"
/**
* hvf_arm_init_debug() - initialize guest debug capabilities
*
* Should be called only once before using guest debug capabilities.
*/
void hvf_arm_init_debug(void);
void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu);
#endif