Changes since v6: * Drop the crypto-obj-y, crypto-aes-obj-y, and configure changes. This fixes the regression visible in make check-unit, due to objects not being pulled in from libqemuutil.a. * Add a crypto-rng-obj-y, and force it to be random-platform.o. This avoids attempting to link the crypto libraries into the user-only binaries. Which in turn means we can drop all of the configure changes to cope with the crypto libraries not having the static libraries packaged by recent distros.
Changes since v5: * Merge crypto-obj-y into util-obj-y (patch 2). * Fix leftover crypto-obj-aes-y reference (patch 2). * Add ARM_CP_IO to the RNG registers (patch 22). * Issue gen_io_start/end around ppc DARN (new patch 24). * Issue gen_io_start/end around x86 rdrand (patch 25). Changes since v4: * Do not autoenable nettle or gcrypt if linking is broken. Fixes --static on fedora 30. * Delay removal of srand() for -seed. * Do not loop for -1 result for ppc64 DARN. Changes since v3: * Do not autoenable gnutls if linking is broken. Fixes --static on ubuntu 18.04. Changes since v2: * Changes from review. - getrandom is not exclusive of /dev/urandom fallback. - vnc fails gracefully on crypto failure. - a great renaming. * Drop the "nonblock" argument, as it's not deliverable from the backend. * Propagate Error back through qemu_guest_getrandom. * Add qemu_guest_getrandom_nofail to centralize "Argh! Death!". * Convert hw/misc/ * Implement ppc darn. * Implement x86 rdrand. Changes since v1: * Build crypto-obj-y for linux-user as well. * Several patches to tidy crypto/random-platform.c. * Use getrandom(2) in crypto/random-platform.c. * Use qcrypto_random_bytes in ui/vnc.c. * In qemu_getrandom: - Use g_rand_int instead of srand48. - Use qcrypto_random_bytes instead of getrandom directly. r~ Richard Henderson (24): build: Link user-only with crypto-rng-obj-y crypto: Reverse code blocks in random-platform.c crypto: Do not fail for EINTR during qcrypto_random_bytes crypto: Use O_CLOEXEC in qcrypto_random_init crypto: Use getrandom for qcrypto_random_bytes crypto: Change the qcrypto_random_bytes buffer type to void* ui/vnc: Split out authentication_failed ui/vnc: Use gcrypto_random_bytes for start_auth_vnc util: Add qemu_guest_getrandom and associated routines cpus: Initialize pseudo-random seeds for all guest cpus linux-user: Initialize pseudo-random seeds for all guest cpus linux-user: Call qcrypto_random_init if not using -seed linux-user: Use qemu_guest_getrandom_nofail for AT_RANDOM linux-user/aarch64: Use qemu_guest_getrandom for PAUTH keys linux-user: Remove srand call aspeed/scu: Use qemu_guest_getrandom_nofail hw/misc/nrf51_rng: Use qemu_guest_getrandom_nofail hw/misc/bcm2835_rng: Use qemu_guest_getrandom_nofail hw/misc/exynos4210_rng: Use qemu_guest_getrandom target/arm: Put all PAC keys into a structure target/arm: Implement ARMv8.5-RNG target/ppc: Use qemu_guest_getrandom for DARN target/ppc: Use gen_io_start/end around DARN target/i386: Implement CPUID_EXT_RDRAND Makefile | 6 +- Makefile.objs | 1 + Makefile.target | 3 +- include/crypto/random.h | 2 +- include/qemu/guest-random.h | 68 ++++++++++++++++++ include/qom/cpu.h | 1 + linux-user/aarch64/target_syscall.h | 2 - target/arm/cpu.h | 17 +++-- target/i386/helper.h | 2 + cpus.c | 9 +++ crypto/random-gcrypt.c | 2 +- crypto/random-gnutls.c | 2 +- crypto/random-platform.c | 104 +++++++++++++++++----------- hw/misc/aspeed_scu.c | 10 +-- hw/misc/bcm2835_rng.c | 32 ++++----- hw/misc/exynos4210_rng.c | 11 ++- hw/misc/nrf51_rng.c | 4 +- linux-user/aarch64/cpu_loop.c | 25 +------ linux-user/elfload.c | 8 +-- linux-user/main.c | 33 +++++---- linux-user/syscall.c | 34 +++++++-- target/arm/cpu64.c | 1 + target/arm/helper.c | 64 ++++++++++++++--- target/arm/pauth_helper.c | 18 ++--- target/i386/cpu.c | 5 +- target/i386/int_helper.c | 21 ++++++ target/i386/translate.c | 62 +++++++++++++---- target/ppc/int_helper.c | 39 +++++++---- target/ppc/translate.c | 21 ++++-- ui/vnc.c | 53 ++++++-------- util/guest-random.c | 93 +++++++++++++++++++++++++ vl.c | 4 ++ configure | 18 ++++- crypto/Makefile.objs | 1 + qemu-options.hx | 10 +++ util/Makefile.objs | 1 + 36 files changed, 566 insertions(+), 221 deletions(-) create mode 100644 include/qemu/guest-random.h create mode 100644 util/guest-random.c -- 2.17.1