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2022-11-17target/ppc: Fix build warnings when building with 'disable-tcg'Vaibhav Jain
Kowshik reported that building qemu with GCC 12.2.1 for 'ppc64-softmmu' target is failing due to following build warnings: <snip> ../target/ppc/cpu_init.c:7018:13: error: 'ppc_restore_state_to_opc' defined but not used [-Werror=unused-function] 7018 | static void ppc_restore_state_to_opc(CPUState *cs, <snip> Fix this by wrapping these function definitions in 'ifdef CONFIG_TCG' so that they are only defined if qemu is compiled with '--enable-tcg' Reported-by: Kowshik Jois B S <kowsjois@linux.ibm.com> Fixes: 61bd1d2942 ("target/ppc: Convert to tcg_ops restore_state_to_opc") Fixes: 670f1da374 ("target/ppc: Implement hashst and hashchk") Fixes: 53ae2aeb94 ("target/ppc: Implement hashstp and hashchkp") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1319 Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Tested-by: Kowshik Jois B S <kowsjois@linux.vnet.ibm.com> Message-Id: <20221116131743.658708-1-vaibhav@linux.ibm.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-11-01accel/tcg: Remove will_exit argument from cpu_restore_stateRichard Henderson
The value passed is always true, and if the target's synchronize_from_tb hook is non-trivial, not exiting may be erroneous. Reviewed-by: Claudio Fontana <cfontana@suse.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-10-28target/ppc: move the p*_interrupt_powersave methods to excp_helper.cMatheus Ferst
Move the methods to excp_helper.c and make them static. Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20221021142156.4134411-4-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: introduce ppc_maybe_interruptMatheus Ferst
This new method will check if any pending interrupt was unmasked and then call cpu_interrupt/cpu_reset_interrupt accordingly. Code that raises/lowers or masks/unmasks interrupts should call this method to keep CPU_INTERRUPT_HARD coherent with env->pending_interrupts. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20221021142156.4134411-2-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: add power-saving interrupt masking logic to ↵Matheus Ferst
p7_next_unmasked_interrupt Export p7_interrupt_powersave and use it in p7_next_unmasked_interrupt. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-26-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove generic architecture checks from p7_deliver_interruptMatheus Ferst
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-24-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove unused interrupts from p7_deliver_interruptMatheus Ferst
Remove the following unused interrupts from the POWER7 interrupt processing method: - PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p; - Hypervisor Virtualization: introduced in Power ISA v3.0; - Hypervisor Doorbell and Event-Based Branch: introduced in Power ISA v2.07; - Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined for embedded CPUs; - Doorbell and Critical Doorbell Interrupt: processor does not implement the Embedded.Processor Control category; - Programmable Interval Timer: 40x-only; - PPC_INTERRUPT_THERM: only raised for 970 and POWER5p; Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-23-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: create an interrupt deliver method for POWER7Matheus Ferst
The new method is identical to ppc_deliver_interrupt, processor-specific code will be added/removed in the following patches. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-22-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove unused interrupts from p7_next_unmasked_interruptMatheus Ferst
Remove the following unused interrupts from the POWER7 interrupt masking method: - PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p; - Hypervisor Virtualization: introduced in Power ISA v3.0; - Hypervisor Doorbell and Event-Based Branch: introduced in Power ISA v2.07; - Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined for embedded CPUs; - Doorbell and Critical Doorbell Interrupt: processor does not implement the Embedded.Processor Control category; - Programmable Interval Timer: 40x-only; - PPC_INTERRUPT_THERM: only raised for 970 and POWER5p; Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-21-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: create an interrupt masking method for POWER7Matheus Ferst
The new method is identical to ppc_next_unmasked_interrupt_generic, processor-specific code will be added/removed in the following patches. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-20-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: add power-saving interrupt masking logic to ↵Matheus Ferst
p8_next_unmasked_interrupt Export p8_interrupt_powersave and use it in p8_next_unmasked_interrupt. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-19-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove generic architecture checks from p8_deliver_interruptMatheus Ferst
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-17-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove unused interrupts from p8_deliver_interruptMatheus Ferst
Remove the following unused interrupts from the POWER8 interrupt processing method: - PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p; - Debug Interrupt: removed in Power ISA v2.07; - Hypervisor Virtualization: introduced in Power ISA v3.0; - Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined for embedded CPUs; - Critical Doorbell: processor does not implement the "Embedded.Processor Control" category; - Programmable Interval Timer: 40x-only; - PPC_INTERRUPT_THERM: only raised for 970 and POWER5p; Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-16-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: create an interrupt deliver method for POWER8Matheus Ferst
The new method is identical to ppc_deliver_interrupt, processor-specific code will be added/removed in the following patches. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-15-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove unused interrupts from p8_next_unmasked_interruptMatheus Ferst
Remove the following unused interrupts from the POWER8 interrupt masking method: - PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970, and POWER5p; - Debug Interrupt: removed in Power ISA v2.07; - Hypervisor Virtualization: introduced in Power ISA v3.0; - Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined for embedded CPUs; - Critical Doorbell: processor does not implement the "Embedded.Processor Control" category; - Programmable Interval Timer: 40x-only; - PPC_INTERRUPT_THERM: only raised for 970 and POWER5p; Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-14-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: create an interrupt masking method for POWER8Matheus Ferst
The new method is identical to ppc_next_unmasked_interrupt_generic, processor-specific code will be added/removed in the following patches. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-13-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: add power-saving interrupt masking logic to ↵Matheus Ferst
p9_next_unmasked_interrupt Export p9_interrupt_powersave and use it in p9_next_unmasked_interrupt. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-12-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove generic architecture checks from p9_deliver_interruptMatheus Ferst
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-10-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove unused interrupts from p9_deliver_interruptMatheus Ferst
Remove the following unused interrupts from the POWER9 interrupt processing method: - PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p; - Debug Interrupt: removed in Power ISA v2.07; - Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined for embedded CPUs; - Critical Doorbell Interrupt: removed in Power ISA v3.0; - Programmable Interval Timer: 40x-only. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-9-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: create an interrupt deliver method for POWER9/POWER10Matheus Ferst
The new method is identical to ppc_deliver_interrupt, processor-specific code will be added/removed in the following patches. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-8-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: remove unused interrupts from p9_next_unmasked_interruptMatheus Ferst
Remove the following unused interrupts from the POWER9 interrupt masking method: - PPC_INTERRUPT_RESET: only raised for 6xx, 7xx, 970 and POWER5p; - Debug Interrupt: removed in Power ISA v2.07; - Critical Input, Watchdog Timer, and Fixed Interval Timer: only defined for embedded CPUs; - Critical Doorbell Interrupt: removed in Power ISA v3.0; - Programmable Interval Timer: 40x-only. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-7-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: create an interrupt masking method for POWER9/POWER10Matheus Ferst
The new method is identical to ppc_next_unmasked_interrupt_generic, processor-specific code will be added/removed in the following patches. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-6-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: prepare to split interrupt masking and delivery by excp_modelMatheus Ferst
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-5-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: split interrupt masking and delivery from ppc_hw_interruptMatheus Ferst
Split ppc_hw_interrupt into an interrupt masking method, ppc_next_unmasked_interrupt, and an interrupt processing method, ppc_deliver_interrupt. Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20221011204829.1641124-4-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: always use ppc_set_irq to set env->pending_interruptsMatheus Ferst
Use ppc_set_irq to raise/clear interrupts to ensure CPU_INTERRUPT_HARD will be set/reset accordingly. Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20221011204829.1641124-3-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-28target/ppc: define PPC_INTERRUPT_* values directlyMatheus Ferst
This enum defines the bit positions in env->pending_interrupts for each interrupt. However, except for the comparison in kvmppc_set_interrupt, the values are always used as (1 << PPC_INTERRUPT_*). Define them directly like that to save some clutter. No functional change intended. Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20221011204829.1641124-2-matheus.ferst@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-10-17target/ppc: restore powerpc_excp_booke doorbell interruptsNicholas Piggin
This partially reverts commit 9dc20cc37db9 ("target/ppc: Simplify powerpc_excp_booke"), which removed DOORI and DOORCI interrupts. Without this patch, a -cpu e5500 -smp 2 machine booting Linux crashes with: qemu: fatal: Invalid PowerPC exception 36. Aborting Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220924114436.1422786-1-npiggin@gmail.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-09-20target/ppc: Implement hashstp and hashchkpVíctor Colombo
Implementation for instructions hashstp and hashchkp, the privileged versions of hashst and hashchk, which were added in Power ISA 3.1B. Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Lucas Mateus Castro <lucas.araujo@eldorado.org.br> Message-Id: <20220715205439.161110-4-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-09-20target/ppc: Implement hashst and hashchkVíctor Colombo
Implementation for instructions hashst and hashchk, which were added in Power ISA 3.1B. It was decided to implement the hash algorithm from ground up in this patch exactly as described in Power ISA. Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Lucas Mateus Castro <lucas.araujo@eldorado.org.br> Message-Id: <20220715205439.161110-3-victor.colombo@eldorado.org.br> [danielhb: fix block comment in excp_helper.c] Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-08-04ppc: Remove redundant macro MSR_BOOK3S_MASK.Yonggang Luo
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20220728201135.223-1-luoyonggang@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-05target/ppc: Remove msr_hv macroVíctor Colombo
msr_hv macro hides the usage of env->msr, which is a bad behavior. Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-20-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-05-05target/ppc: Remove msr_fe0 and msr_fe1 macrosVíctor Colombo
msr_fe0 and msr_fe1 macros hide the usage of env->msr, which is a bad behavior. Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-18-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-05-05target/ppc: Remove msr_fp macroVíctor Colombo
msr_fp macro hides the usage of env->msr, which is a bad behavior Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-13-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-05-05target/ppc: Remove msr_me macroVíctor Colombo
msr_me macro hides the usage of env->msr, which is a bad behavior Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-11-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-05-05target/ppc: Remove msr_pow macroVíctor Colombo
msr_pow macro hides the usage of env->msr, which is a bad behavior Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-10-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-05-05target/ppc: Remove msr_ce macroVíctor Colombo
msr_ce macro hides the usage of env->msr, which is a bad behavior Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-9-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-05-05target/ppc: Remove msr_ee macroVíctor Colombo
msr_ee macro hides the usage of env->msr, which is a bad behavior Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-8-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-05-05target/ppc: Remove msr_pr macroVíctor Colombo
msr_pr macro hides the usage of env->msr, which is a bad behavior Substitute it with FIELD_EX64 calls that explicitly use env->msr as a parameter. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220504210541.115256-4-victor.colombo@eldorado.org.br> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2022-03-02target/ppc: trigger PERFM EBBs from power8-pmu.cDaniel Henrique Barboza
This patch adds the EBB exception support that are triggered by Performance Monitor alerts. This happens when a Performance Monitor alert occurs and MMCR0_EBE, BESCR_PME and BESCR_GE are set. fire_PMC_interrupt() will execute the raise_ebb_perfm_exception() helper which will check for MMCR0_EBE, BESCR_PME and BESCR_GE bits. If all bits are set, do_ebb() will attempt to trigger a PERFM EBB event. If the EBB facility is enabled in both FSCR and HFSCR we consider that the EBB is valid and set BESCR_PMEO. After that, if we're running in problem state, fire a POWERPC_EXCP_PERM_EBB immediately. Otherwise we'll queue a PPC_INTERRUPT_EBB. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220225101140.1054160-5-danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02target/ppc: add PPC_INTERRUPT_EBB and EBB exceptionsDaniel Henrique Barboza
PPC_INTERRUPT_EBB is a new interrupt that will be used to deliver EBB exceptions that had to be postponed because the thread wasn't in problem state at the time the event-based branch was supposed to occur. ISA 3.1 also defines two EBB exceptions: Performance Monitor EBB exception and External EBB exception. They are being added as POWERPC_EXCP_PERFM_EBB and POWERPC_EXCP_EXTERNAL_EBB. PPC_INTERRUPT_EBB will check BESCR bits to see the EBB type that occurred and trigger the appropriate exception. Both exceptions are doing the same thing in this first implementation: clear BESCR_GE and enter the branch with env->nip retrieved from SPR_EBBHR. The checks being done by the interrupt code are msr_pr and BESCR_GE states. All other checks (EBB facility check, BESCR_PME bit, specific bits related to the event type) must be done beforehand. Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20220225101140.1054160-4-danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-21exec/exec-all: Move 'qemu/log.h' include in units requiring itPhilippe Mathieu-Daudé
Many files use "qemu/log.h" declarations but neglect to include it (they inherit it via "exec/exec-all.h"). "exec/exec-all.h" is a core component and shouldn't be used that way. Move the "qemu/log.h" inclusion locally to each unit requiring it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220207082756.82600-10-f4bug@amsat.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-02-18target/ppc: Introduce a vhyp framework for nested HV supportNicholas Piggin
Introduce virtual hypervisor methods that can support a "Nested KVM HV" implementation using the bare metal 2-level radix MMU, and using HV exceptions to return from H_ENTER_NESTED (rather than cause interrupts). HV exceptions can now be raised in the TCG spapr machine when running a nested KVM HV guest. The main ones are the lev==1 syscall, the hdecr, hdsi and hisi, hv fu, and hv emu, and h_virt external interrupts. HV exceptions are intercepted in the exception handler code and instead of causing interrupts in the guest and switching the machine to HV mode, they go to the vhyp where it may exit the H_ENTER_NESTED hcall with the interrupt vector numer as return value as required by the hcall API. Address translation is provided by the 2-level page table walker that is implemented for the bare metal radix MMU. The partition scope page table is pointed to the L1's partition scope by the get_pate vhc method. Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220216102545.1808018-9-npiggin@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-18target/ppc: Add powerpc_reset_excp_state helperNicholas Piggin
This moves the logic to reset the QEMU exception state into its own function. Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [ clg: checkpatch fixes ] Message-Id: <20220216102545.1808018-8-npiggin@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-18target/ppc: add helper for books vhyp hypercall handlerNicholas Piggin
The virtual hypervisor currently always intercepts and handles hypercalls but with a future change this will not always be the case. Add a helper for the test so the logic is abstracted from the mechanism. Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20220216102545.1808018-7-npiggin@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09target/ppc: books: Remove excp_model argument from ppc_excp_apply_ailFabiano Rosas
We don't really need to check for exception model while applying AIL. We can check the lpcr_mask for the presence of LPCR_AIL/LPCR_HAIL. This removes one more instance of passing the exception model ID around. Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20220207183036.1507882-5-farosas@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09target/ppc: Assert if MSR bits differ from msr_mask during exceptionsFabiano Rosas
We currently abort QEMU during the dispatch of an interrupt if we try to set MSR_HV without having MSR_HVB in the msr_mask. I think we should verify this for all MSR bits. There is no reason to ever have a MSR bit set if the corresponding bit is not set in that CPU's msr_mask. Note that this is not about the emulated code setting reserved bits. We clear the new_msr when starting to dispatch an exception, so if we end up with bits not present in the msr_mask that is a QEMU programming error. I kept the HSRR verification for BookS because it is the only CPU family that has HSRRs. Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20220207183036.1507882-4-farosas@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09target/ppc: powerpc_excp: Move common code to the caller functionFabiano Rosas
Make the cpu-specific powerpc_excp_* functions a bit simpler by moving the bounds check and logging to powerpc_excp. Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220207183036.1507882-3-farosas@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09target/ppc: Remove powerpc_excp_legacyFabiano Rosas
Now that all CPU families have their own separate exception dispatching code we can remove powerpc_excp_legacy. Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220207183036.1507882-2-farosas@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09target/ppc: 7xx: Set SRRs directly in exception codeFabiano Rosas
The 7xx CPUs don't have alternate/hypervisor Save and Restore Registers, so we can set SRR0 and SRR1 directly. Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20220204173430.1457358-11-farosas@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-02-09target/ppc: 7xx: Software TLB cleanupFabiano Rosas
This code applies only to the 7xx CPUs, so we can remove the switch statement. Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Message-Id: <20220204173430.1457358-10-farosas@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
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